My parents usually goes for ________ walk in ________ evening.
| A．the, a | B．a, the | C．/ ,the | D．a , an |
You will fall behind others ____________ you work hard.
| A．unless | B．though | C．if | D．since |
H7N9 bird flu is a virus can make people die. We’d better stay away from birds at present.
| A．who | B．which | C．what | D．whom |
--- Could you tell me __________?
--- Certainly. In half an hour.
| A．when will the train to Beijing leave |
| B．when the train to Beijing would leave |
| C．when the train to Beijing left |
| D．when the train to Beijing will leave |
--- Mum, why don’t you have the robot ________ housework for you?
--- Oh, it caught a virus. I should have it _________ at once.
| A．done; repair | B．do; repaired |
| C．done; repaired | D．do; repair |
―Did you see Mr. Li when you were in France?
―No, when I ______, he ______ to Canada.
| A．arrived, had gone | B．had arrived, went |
| C．got, had went | D．reached, would go |