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题目
题型:不详难度:来源:
The children __very quiet;I wonder what they __up to.
A.were; are beingB.are being;areC.are;doD.are being;do

答案
B
解析
be用于进行时可表示一个暂时的特点或表现。What they are up to相当于What they are doing。
核心考点
试题【 The children __very quiet;I wonder what they __up to.A.were; are beingB.are bei】;主要考察你对一般现在时等知识点的理解。[详细]
举一反三
He __articles for our wall-newspaper these three years, and he __about forty articles.
A.has been writing; has writtenB.has been writing; wrote
C.is writing; has been writingD.has written; has written

题型:不详难度:| 查看答案
When he was alive, the old scientist used to say that knowledge __from practice and he gained his experience by doing a lot of practical work.
A.was comingB.had comeC.comesD.would come

题型:不详难度:| 查看答案
In this experiment, they are woken up several times during the night, and asked to report what they__.
A.had just been dreamingB.are just dreaming
C.have just been dreamingD.had just dreamt

题型:不详难度:| 查看答案
— What’s the matter?
— The shoes don’t fit properly. They____my feet.
A.are hurtingB.will hurtC.have hurtD.are hurt

题型:不详难度:| 查看答案
Hundreds of jobs ______ if the factory closes.
A.loseB.will be lostC.are lostD.will lose

题型:不详难度:| 查看答案
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