Mary is one of the girls who ______ always on time.                    
#103569
A
is
B
am
C
are
D
was
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—I didn’t take notes at yesterday’s meeting because I had left my pen at home.—You ________ mine. I ______ it.
#101523
A
must have borrowed; wasn’t using
B
may have borrowed; wasn’t using
C
should have borrowed; hadn’t used
D
could have borrowed; wasn’t using
—How long            in America?—Two years. I came back last month.
#101175
A
have you studied
B
do you study
C
would you study
D
did you study