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The teacher often tells us to keep windows ________ after class.   
[     ]
A. open   
B. opened   
C. opening
D. to open
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科目:初中英语 来源:外研社七年级英语(上)练习题 题型:016

My mother is a teache in ________ university.

[  ]
A.

a

B.

an

C.

the

D.

/

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