He wants to see changes in the company and I am sure he will, ______.
| A．on time | B．at a time | C．at one time | D．in time |
Most of us hate people ________ talk much but do little.
| A．whom | B．whose | C．which | D．who |
The craze fans ________ outside the hall, and they will wait till the movie star comes.
| A．were waiting | B．are waiting | C．waited | D．had waited |
Her grandmother has taught in this school _______ she became a school teacher.
| A．before | B．since | C．until | D．after |
Is this the hotel ________ you stayed the first time you were here?
| A．which | B．when | C．that | D．where |
Please ask ________ not to skate on the thin ice.It’s very dangerous.
| A．they | B．them | C．their | D．theirs |