The hotline_________ be very busy，but keep trying and you’ll get through．
| A．should | B．must | C．can | D．would |
Put the books back they belong after you have finished them.
| A．where | B．to where | C．to which | D．to the place |
--- How long do you think it is he arrived here?
--- No more than half a year, I believe.
| A．when | B．that | C．before | D．since |
Great changes have taken place in that school. It is no longer it was 20 years ago,it was so poorly equipped.
| A．what; when | B．that; which | C．what; which | D．which; that |
Who would you rather the watch?
| A．have to repair | B．have fixed | C．get repaired | D．get to repair |
The weather turned out to be fine yesterday. I the trouble to carry my umbrella with me.
| A．should have taken | B．could have taken |
| C．needn’t have taken | D．mustn’t have taken |