问题

. The little boy is dirty from head to footbecause he ___ in the mud all morning.

A:had played
B:has played
C:was playing
D:is playing

正确答案是：

同类题型

I’m afraid he’s more of a talker than a doer, which is ____ he never finishes anything．

There is some doubt among people _________ $749 is too much for an iPhone 5.

What a nice watch it is! —Yes. It’s _________one of all.

Attempts must be made to ______ the barrier(隔阂) between the two communities.

14Since the H1N1 flu is spreading, it’s necessary that whoever has a fever _________ to hospital as soon as possible