问题

Two fifths of the police _____ in theschool near the town.

A:has trained
B:have trained
C:has been trained
D:have been trained

正确答案是：

同类题型

Sarah wondered what ______ her 70-year-oldgrandpa would make of the new computer.

Not having work out the problem,leave the office．

She was reading a book in her chair _____ first time Isaw _____ old lady

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Lucy, do you like playing basketball —No, I _____ it.