问题

Good afternoon! By the way, has Billy finished his homework today— I have no idea. He ___ it this morning.

A:was doing;
B:has been doing;
C:has done;
D:had done;

正确答案是：

同类题型

The car has run 200 thousand kilometers and It needs _____ repairs. [ ]

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Could I have a rest, Sir. —____________, we have few minutes left.

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