He risked __________ his job to see me off.
| A．Losing | B．to risk | C．being lost | D．Lost |
________ more careful, his ship would not have sunk.
| A．If the captain were | B．Had the captain been |
| C．Should the captain be | D．If the captain would have been |
We ________ our lives had it not been for the policeman.
| A．would have lost | B．should lose |
| C．might lose | D．had lost |
Wang Ling, one of my friends, is very good at English. He speaks English as if he ________ an Englishman.
| A．were | B．would be |
| C．have been | D．had been |
The teacher agreed to the suggestion that the students ________ two weeks to prepare for the exam.
| A．give | B．should give |
| C．be given | D．would be given |
I would have come earlier, but I ________ that you were waiting for me.
| A．didn’t know | B．hadn’t know |
| C．would have known | D．haven’t known |