Mary is the only one of the students in our class who ____ to the Great Wall so far.
#103115
A
is
B
has been
C
are
D
had been
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He will stop showing off, if no notice_____of him.
#100266
A
is taken
B
will be taken
C
takes
D
has taken
—Do you regret not having accepted their invitation?—Why should I? I as much, but I’m glad to devote myself to what interests me most.
#100662
A
didn’t earn
B
don’t earn
C
hadn’t earned
D
haven’t earned
John talked with me for about an hour yesterday．Never ________ him talk so much．
#99991
A
did I hear
B
had I heard
C
I had heard
D
I heard