[ Grammar ]
The students __________ quiet when their teacher was teaching in the class.
A. kept
B. keep
C. keeps
D. are keeping
Select your answer:

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Grammar › ViewWe … To each other yesterday
A. Talking
B. Talk
C. Talked
D. Have talked
Idioms › View
If you talk too long on one subject, you ___.
a. run out
b. run over
c. run on
