题目内容
Look! The students _____ the classroom.
| A．clean | B．are cleaning |
| C．are clean | D．cleaning |
B
解析试题分析：句意：看！这些学生们正在打扫教室。分析：考查现在进行时的用法，构成：be doing,主语是第三人称复数，因此be 动词用are.故选 B
考点：考查动词的用法。
练习册系列答案
寒假创新型自主学习第三学期寒假衔接系列答案
相关题目
--He promised to come to see you.
--But he . I’ve been all alone.
| A．doesn't | B．isn't |
| C．hasn't | D．won't |
We don’t know when the sports meeting ______. When it ______, please tell me .
| A．is held; will be held | B．will hold; is held |
| C．will hold; holds | D．will be held; is held |
At this time yesterday my neighbors meals with their friends.
| A．are having | B．were having |
| C．have | D．was having |
— 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 |
--- It’s so cloudy. I think it . ---I think so.
| A．rain | B．rains |
| C．is going to rain | D．is raining |
Because of the cold weather, half of the children________ill for a week.
| A．has been | B．have fallen |
| C．have been | D．has fallen |
—Where have you _____? —I have _____the teachers’ office.
| A．gone; gone to | B．gone; been to |
| C．been; been to | D．been; gone to |
Nancy _________ eat a lot of snacks between meals, but now she _______ green food.
| A．used to, is used to | B．used to , used to |
| C．is used to, used to | D．is used to, is used to |