题目内容
用括号内所给动词的正确形式填空
49. Although shopping online is fast and easy, you’d better (not be) crazy about it.
50. It is said that some people (send) to Mars in a few years.
51. Tom was seen (jump) into the river and help the child out.
52. —Every student in our class was at the meeting except you. Why?
—Sorry, sir. Ms Wang (explain) a maths problem to me.
53. My father (work) in a factory for five years. But now he is a teacher,
49. not be 50. will be sent 51. to jump
52. was explaining 53. worked
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