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78.(    ) Wuhan Changjiang Bridge is 1670 metres long.A 130-metre train will go across it with the speed(速度)of 24 kilometres every hour, How many seconds will it take the train to cross the bridge?_____

A.200      B. 250       C. 270   D. 300

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77.(    ) Look at the number,1/3,1/2,5/9,7/12,3/5…,The next number is______

A. 7/15        B. 11/18         C. 3/7              D. 9/11

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76.(    ) The duck _____on the ground quietly and then ____an egg.

A. laid, lay         B. lay, laid       C. laids, lays         D. lays, laids

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75.(    ) There is a bird____ ____the tree.

A. to sing, on           B. singing, on     C. singing, in         D. to sing, in

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74.(    ) I don’t know when the teacher ____, when he ____,I’ll tell you.

A. goes, goes               B. will be back, will be back

C. comes, will come      D. will come, comes

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73.(    ) -Are there any apples in the box?

-Yes, there _____some.

A. maybe       B. can be        C. may have      D. may be

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72.(    ) Mr Brown, a writer, ______playing golf.

A. likes        B. like          C. is liking       D. are liking

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71.(    ) Tom didn’t do _____housework.

A. a little       B. a bit          C. a bit of           D. A and C

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70.(    ) Tom with his two brothers ____in the countryside and cut down some trees.

A. is          B. are           C. was          D. were

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69.(    ) Li Lei never put his heart into the lesson,______?

A. doesn’t he        B. does he       C. didn’t he      D. did he

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