Choose the correct answer.
Before leaving the classroom, we must turn ________ the lights and the fans.
A.on
B.off
C.up
D.down

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Nam didn’t go to the club yesterday ________ he had a bad cold.
A.so
B.if
C.because
D.but

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Vietnamese women today prefer to wear modern clothing at work because it is more ________ .
A.colorful
B.traditional
C.convenient
D.expensive

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They haven’t come back to their hometown ________ 2009.
A.in
B.for
C.on
D.since

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We suggest that you ________ harder on your English pronunciation.
A.work
B.works
C.should work
D.A & C are correct

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He asked me when ________ come back.
A.would I
B.will I
C.I will
D.I would

He has (A) less (B) friends in his classes (C) now than he had (D) last year.
A.has
B.less
C.in his classes
D.had

First of all (A), he asked me how (B) old was (C) I and where I came from (D).
A.First of all
B.how
C.was
D.where I came from

A.passed
B.watched
C.played
D.washed

A.gather
B.prevent
C.control
D.provide