题目内容

Look! Mary____doing____homework.

A. is;one's
B. is;her
C. are;his
D. are;her

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The children are____

A. watch
B. seeing
C. watching
D. reading

Are the boys looking at the blackboard? Yes,they____.

A. aren't
B. do
C. don't
D. are

There's____girl,she is very tall.

A. second
B. two
C. a second
D. all second

--Do you have a red pen?Which of the following is wrong?____.

A. Yes; I have one
B. Yes,I have it
C. Yes,I do
D. Sorry,I don't

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