题目
9.This farm tool needs _.A.repair B.to repair C.repairing D.repairs 说明原因
The little boy is dirty from head to foot because
he _____ in the mud all morning.
A has played B is playing
C has been playing D was playing
为什么答案是C不是A
The little boy is dirty from head to foot because
he _____ in the mud all morning.
A has played B is playing
C has been playing D was playing
为什么答案是C不是A
提问时间：2020-08-10
答案
举一反三
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