.Look out! Don’t get too close to the house ______ the roof is under repair.
| A．whose | B．which | C．of which | D．what |
I______you a beautiful present for your birthday,but I was short of money at that time.
| A．would buy | B．had bought | C．would like to have bought | D．must have bought |
I ______your address, otherwise I______you long before.
| A．had forgotten,had visited | B．forgot, have visited |
| C．forgot,would have visited | D．have forgotten,would visit |
The young man insisted that he______ these watches and______free.
| A．stole, set | B．had stolen, be set | C．steal, be set | D．had stolen； must be set |
—Would you have told him the answer had it been possible?
—I would have, but I ______so busy then.
| A．had been | B．were | C．was | D．would be |
— It is rather cold here. Shall we light a fire?
— No, we______because things are easy to catch fire.
| A．won’t | B．can’t | C．mustn’t | D．needn’t |