问题

The little boy is dirty from head tofoot because he ______ in the mud all morning.

A:didn’t have
B:has been playing
C:is playing
D:was playing

正确答案是：

同类题型

Their answers are exactly the same. One of them ___ from the other.

In order to finish the task on time , we can’tto waste a single minute.

the sight of the scene of war, my_____ race back more than 50 years to the dark days of 1940

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19 I don’t know why he blamed the accident_____ me