Question

— Has Tom finished writing his essay today?
— I have no idea. He ______ it this morning

1. A.
   wrote
2. B.
   has written
3. C.
   was writing
4. D.
   had written

Answer 1

C
考查时态。根据this morning可知这里是表示过去的一个时间。是指在今天早晨他正在做的事情，所以使用过去进行时。句意：—今天Tom写完他的那篇文章了吗？—我不知道。今天早晨的时候他正在写。