1. I don’t know if it ___   tomorrow ,if it ___ , we won’t go on a picnic. 

A. rains; rains 

B. will rain; rains 

C. will rain; will rain 

2. We can’t go to the zoo ___ the weather is fine tomorrow. 

A. unless       

B. if        

C. because 

3. Just work hard, ____ your dream will come true. 

A. but           

B. and         

C. or 

4. Don’t cross the street ____ the traffic lights are green. 

A. after          

B. until        

C. when 

5. ____ they may not succeed, they will try their best. 

A. Though      

B. Because       

C. Unless 

6. We will have no water to dink      we don’t protect the earth.

A. until      

B. before    

C.  if 

7. Luckily, all the students got out of the teaching building ___ if fell down. 

A. until    

B. before     

C. after        

8. My grandma didn’t go sleep ___ I got back home. 

A. where    

B. until      

C. as soon as 

9.  Uncle Wang gave all his savings to the Hope School ______he himself was not rich.

A. because                 

B. as if                   

C. though      

10.You’ll do better ___you are more careful with your spelling. 

A .if    

B. before     

C. although     

11.The sports meeting will continue___ it rains this afternoon. 

A. if    

B. since     

C. unless 

12.I’ll give her the message___she comes back. 

A. till   

B. before     

C. as soon as 

13.Jim is going to be a doctor when he _______ .           

A. will grow up          

B. grows up                

C. grow up     

14.—Did you catch what the teacher said? —No. She spoke so fast    I couldn’t hear her very clearly. 

A .which    

B. that    

C. when     

15.The teacher speaks very loudly ___ all the students can hear her. 

A. so that    

B. because    

C. since  

16. Study hard, _______ you will catch up with your classmates. 

A. and    

B. or    

C. but 

17. Several days has passed _________ the terrible earthquake happened in Japan. 

A. after     

B. since    

C. as 

18. It’s raining outside. Don’t leave _______ it stops. 

A. When  

B. since 

C. until

19. _________ it’s difficult to make her dream come true, but she never gives up. 

A. Though   

B. /    

C. Because 

20. ____ you go to the party, you will have a good time.    

A. If            

B. Though          

C. Because 

21.--- Is WuDong at school today ?   

---- No, he is at home____ he has a bad cold.    

A. When        

B. Though          

C. Because 

22.There are___many books on math in the bookshop that he can’t decide which to choose.      

A. so     

B. too     

C. such      

23.He got up early___he could get to school on time 

A. even though     

B. as if    

C. so that      

24.She is___short ___she can’t reach the buttons of the lift 

A .so, that    

B. such, that     

C. too, to   

25.---Mum, what did the doctor say ?    

--- He asked me to live ____ the air is fresher.    

A. where         

B. when      

C. because 

26.The piano in the other shop will be ____ ,but____.    

A. cheaper ; not as better     

B. more cheap; not asbetter    

C. cheaper ;  not as good  

27.All of us haven’t seen Mike      he left our city. 

A. when    

B. until    

C. since 

28. ___they are poor, yet they are very honest. 

A. Because     

B. Although    

C. When     

29. ---What was the party like? 

---Wonderful. It’s years __________I enjoyed myself so much. 

A. after         

B. before     

C. since 

30. Why do you want a new job __________you got such a good one already? A. that          

B. where     

C. when  

31. You will be late ______________you leave immediately. 

A. unless        

B. until        

C. if            

32. We won’t give up ______________we may fail ten times.  

A. even if         

B. since             

C. whether         

33. The new secretary is supposed to report to the manager as soon as she _________. 

A. will arrive      

B. arrives            

C. is arriving          

34. The volleyball match will be put off if it _______________. 

A. will rain           

B. rains            

C. rained              

35. It rained___ heavily that they didn’t come. 

A. as           

B. too        

C. so             

36. I often visited Tian’an Men Square ____________I was staying in Beijing. 

A. until         

B. during          

C. while                

37. He always thinks I’m wrong, _____________I may say. 

A. no matter whatever          

B. whatever          

C. what               

38. __________the rain has stopped, let’s continue to work. 

A. Because     

B. If           

C. That            

39. They waited __________it was dark  

A. until        

B  for       

C.  because 

40. You will catch a cold _____________put on more clothes. 

A. if you don’t         

B. if you will not          

C. until you 

41. We had hardly got to the station __________it began no rain. 

A. until           

B. since         

C. when 

42. They were surprised that a child should work out the problem __they themselves couldn’t. 

A. once           

B. then           

C. while              

43. My name is Robert, ___________most of my friends call me Bob for short. 

A. then        

B. instead          

C. however      

44. Hurry up, _______ you will be late. 

A. and    

B. or    

C. but 

45. Several days has passed _________ the terrible earthquake happened in Japan. 

A .after    

B. since    

C. as 

46. _________ he is young, he knows a lot. 

A. Though   

B. /     

C. Because 

47. My friends always go shopping when _____.       

A. it is sunny        

B. it will be sunny        

C. it is raining 

48. We are not sure if the bus _____ on time. If it _____ on time , we will take a taxi.        

A. comes; doesn’t come    

B. will come; won’t come   

C. will come; doesn’t come 

49. Lucy came to the library early _____ she borrowed her favorite book.    

A. since        

B. for        

C. so that 

50. We couldn’t get to school on time ____ it was raining heavily. 

A. because of      

B. because              

C. though