My son has gone abroad. I’m looking forward to him _________.
| A．return | B．to return | C．returning | D．returned |
When asked to explain _____ he did to make his students so fascinated with his lessons, the teacher paused and thought deeply.
| A．what was it that | B．that what it was |
| C．what it was that | D．what was it |
If you find yourself ______ no one will help you, please call me.
| A．where | B．when | C．which | D．what |
It be the vocabulary that caused you the problem in the exercise because you know a lot of words.
| A．may | B．couldn’t | C．should | D．needn’t |
At no time _______ the rules of the game. It was unfair to punish them.
| A．they actually broke | B．would they actually break |
| C．did they actually break | D．they had actually broken |
The place he suggested to us ______ the meeting is a five-star hotel.
| A．holding | B．to hold | C．hold | D．should hold |