Question

用括号中所给词的适当形式填空。

1. I haven't decided what ________ (write) about.
2. I often hear him________ (sing) in the next room.
3. I find it easy _______ (work) out the difficult problem.
4. It is too dark to see the blackboard________ (clear). you had better turn on the light.
5. — Where is Bob?do you know? — Oh, he                (go) to the post office.
6. The teacher is ________ (please) with what we have done in class.
7. Tom ran so ________ (quick) that I couldn't catch up with him.

Answer 1

1. to write  2. sing  3. to work  4. clearly  5. has gone  6. pleased  7. quickly