I think you should complain, , of course, you are happy with the situation.
| A．unless | B．however | C．until | D．though |
—Could you help me take care of my pet dog on the weekend?
— I’m afraid I’m not that day.
| A．vacant | B．sufficient | C．convenient | D．Available |
—I began to learn English when I was a little child.
—Wow. You must have studied English for many years, ?
| A．don’t you | B．mustn’t you | C．needn’t you | D．haven’t you |
—Have you got any particular plans for the coming holiday?
—Yes._____, I’m going to visit some homes for the old in the city.
| A．If ever | B．If busy | C．If anything | D．If possible |
— Tom knocked into the banisters（栏杆） last night while driving, but she is all right.改编
— He is lucky. He himself badly.
| A．could have injured | B．might injure |
| C．should have injured | D．should injure |
We should set up more cultural parks the old can enjoy themselves.
| A．when | B．whose | C．where | D．which |