I regret ______ that I’m too busy ______ in the talk.
| A．to say, to participate | B．saying, participating |
| C．to say, participating | D．saying, to participate |
Did the fire ________or was it________？
| A．go out；go out |
| B．go out；put out |
| C．put out；go out |
| D．put out；put out |
You shouldn't keep silent when________.
| A．speaking |
| B．spoken to |
| C．spoken |
| D．speaking to |
Doesn't it ________you as rather strange that he never talks about his family?
| A．beat |
| B．hit |
| C．strike |
| D．knock |
Several rounds of air and ground attacks from the allied force left the whole city________.
| A．in pieces |
| B．in ruins |
| C．in part |
| D．in place |
All the students in our class buried themselves ________studies，________
the coming exam.
| A．in；preparing |
| B．in；preparing for |
| C．for；prepared |
| D．for；prepared for |