Look! David is helping his mother the room.A．is cleaningB．cleaning C．cleans D．clean 题目和参考答案——青夏教育精英家教网—

题目内容

Look! David is helping his mother _______ the room.

A．is cleaning

B．cleaning

C．cleans

D．clean

试题分析：句意：看！戴维正在帮助他的妈妈整理房间。help sb (to)do sth帮助某人做某事，故选D
点评：现在进行时表示动作正在进行，由be + doing构成，be为助动词。初学者最容易漏掉，它应与主语的人称和数保持一致。习惯于look（看），listen（听）等表动作的动词连用。

练习册系列答案

---I saw your sister ride a new bike this morning.
---A new bike? She ________ it for about two years.

— Have you finished your homework?
— Not yet. But I _______ it in half an hour.

I ______ some bread and milk______ breakfast this morning.

Han Mei _________ her homework every day at home.
A. do B. does C. is doing

---What did Alice say?
---She said she me at eight o’clock tomorrow morning.

I would like to buy the black pen because I ______that kind of pen ______well.

A．have told ;writes	B．was told;wrote
C．have been told;writes	D．have been told;is written

One of my best friends newspapers every morning .

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