问题

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

正确答案是：

同类题型

Look, Tony _______ on the grass!

Can you imagine _______ camping on a rainy day

Not until ________ in the college entrance exam ________ that he had wasted much time using his mobile phone to surf the Internet and play games.

He ________ as the tallest boy in the crowd, so I spotted him easily.

Would you like tea or coffee —–________. Thank you . I’ve just had some water .