Having checked the doors were closed, and _________ all the lights were off, the boy opened the door to his bedroom.
| A．why | B．that | C．when | D．where |
The professor, along with his two students, in the studio, the interview.
| A．seating; receiving | B．seated; received |
| C．seated; receiving | D．seating; received |
The driver in plain clothes,was extremely calm and brave in face of danger, was just over twenty.
| A．which | B．who | C．when | D．what |
— May I use your bike? I’ll have to fetch my book home.
— It’s over there..
| A．No problem. | B．Got it. | C．Made it. | D．Feel free. |
It’s your own business. If you don’t attach importance to it, who else ?
| A．does | B．was | C．has | D．will |
Jack not to do that, he wouldn’t have made such a serious mistake.
| A．If I persuade | B．If I should persuade |
| C．Had I persuaded | D．If I persuaded |