题目内容
---I’m sorry, but there is no smoking on this flight.
---Oh, I _____that. Sorry, I won’t again.
| A．don’t know | B．didn’t know | C．won’t know | D．haven’t known |
B
解析试题分析：考察时态。句义：—对不起。在飞机上不能抽烟。—哦！我之前不知道这点。我以后不会再这样做了。根据句义可以在说话之前不知道在这里禁止抽烟。故使用一般过去时。B正确。
考点：考察时态
I won’t tell the student the answer to the math problem until he on it for more than an hour.
| A．has been working | B．will have worked | C．will have been working | D．had worked |
If they broke the law, they for up to two years.
| A．are put into prison | B．were put into prison |
| C．are put into the prison | D．were put into the prison |
In the last twenty years, seven Canadian scientists _____ the Nobel prize!
| A．won | B．had won | C．was winning | D．have won |
I’m sorry I can’t join you. I __________ my homework.
| A．haven’tfinished | B．didn’tfinish |
| C．won’tfinish | D．don’tfinish |
--- It’s the fourth time that heavy smog(雾霾) has hit the city this month.
--- It’s high time we _______ measures to fight air pollution.
| A．will take | B．took | C．to take | D．taking |
The news that volunteer workers will go to homes for the aged ______now.
| A．is being talked about | B．are being talked about |
| C．is being talked | D．are being talked |
--- Do you want a lift home?
--- It’s very kind of you , but I have to work late in the office . I over slept this morning because my alarm clock _________ .
| A．doesn’t go off | B．won’t go off | C．wasn’t going off | D．didn’t go off |
- How could I thank you enough?
- Don't mention it. Any other man_____that.
| A．would do | B．will do |
| C．would have done | D．must have done |