B . until C . since D . after
24. （2分）Get up early, ___________ you'll be late for the train. A . so B . or C . and D . but
25. （2分）It seemed _________ they went to school together. A . if B . what C . that
26. （2分）Beef is healthy food ___ I don't like it. A . and B . but C . also
27. （2分）______ that singer sounds terrible, his songs are very popular. A . Unless B . If C . Though D . Because
28. （2分）I was late for school _____ the heavy traffic(交通). A . because B . when C . because of D . though
29. （2分）We couldn't go shopping ________ the bad weather. A . because of B . because
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C . and D . so
30. （2分）Do you know ______ the population of Yunnan ______? A . how much; is B . what; is C . how many; are D . what; are
31. （2分）My mom always asks me not to stay up late ____I can keep in good health. A . in order to B . unless C . so that D . as long as
32. （2分）—Why do you usually get to school the earliest? —________ I don't want to ________ late for school. A . For; is B . Because; be C . So; be
33. （2分）— Did you call Michael back?
—I didn't need to, ________I'll see him tomorrow. A . unless B . because C . when D . though
34. （2分）Please wait in line ________ try to be a polite person. A . but B . as C . until D . and
35. （2分）There was something wrong with my car, _____ I went to work by underground.
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A . for B . so C . or D . but
36. （2分）You'd better ________ hard from now on, ________ you will fail in the exam. A . work; and B . working; or C . working; and D . work; or
37. （2分）Tom didn't go to bed he finished his homework last night. A . because B . if C . until D . while
38. （2分）—We should work hard. We'll never give up. China dream can come true. —I think so. Let's try our best. A . But B . And C . Or
39. （2分）Mr. Smith knows a lot about China he has never been to our country. A . although B . until C . if D . since
40. （2分）The forest is getting smaller, many animals are losing their home. A . because B . but C . though D . so
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41. （2分）Good friends are like stars. You don't always see them, _______ you know they are there. A . and B . or C . so D . but
42. （2分）Tom didn't finish his homework, _______ the teacher was very angry with him. A . or B . but C . so
43. （2分）It was dark, __________ I couldn't see what was happening. A . or B . though C . but D . so
44. （2分）Tim is crazy about DIY. He continues doing it _____he meets up with difficulties. A . though B . so C . but D . or
45. （2分）The old theatre will close soon some extra donations are made. A . so B . if C . because D . unless
46. （2分）I got up very early I got to the station on time. A . to the result B . in order to C . so that D . because
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