题目内容
— It’s raining. When did it start?
— As far as I know, it ____ for three hours.
| A．rains | B．rained |
| C．has rained | D．will rain |
C
解析试题分析：句意：下雨了。什么时候开始的？——据我所知，已经下了三个小时了。结合语境可知本句描述的是从过去一直持续到现在的动作，故用现在完成时态。选C。
考点：考查时态辨析
举一反三单元同步过关卷系列答案- There_______ big party to celebrate Youth Day in our school this Friday
- Great! Exciting news.
| A．are going to be | B．is going to be |
| C．is going to have | D．are going to have |
- Dad. are you coming with us?
- I'd love to, but something unexpected_______ in my company and I have to go.
| A．would come up | B．comes up |
| C．was coming up | D．has come up |
--- Have you finished all your homework?
--- Of course. I ______ it before I went out to play football.
| A．had finished | B．have finished |
| C．finished | D．was finishing |
Look! The students _____ the classroom.
| A．clean | B．are cleaning |
| C．are clean | D．cleaning |
— ___________Mr Zheng ___________ Beijing last week?
— No, but he ___________ Beijing with his son next year.
| A．Did; visit; visits | B．Did; visit; will visit |
| C．Does; visit; visits | D．Will; visit; will visit |
—I saw Mr.Smith in the office at ten yesterday morning.
—That's impossible. He an Enghish party with us then.
| A．has | B．was having |
| C．had | D．has had |