When you have finished with that video film, don’t forget to put it in my drawer, （）
A. do you
B. will you
C. don’t you
D. won’t you
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73（）
A. number
B. members
C. body
D. relations
75（）
A. whistled
B. sung
C. presented
D. showed
Burning garbage might be one kind of energy source that we can use to help meet our energy needs. ( Passage 2)
Children mustn’ t play with matches because （）
A. matches bum paper
B. it isn’ t interesting
C. they can be dangerous
D. they can bum a house
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