In the last two years the workers______ many tall building.
#36479
A
had built
B
was built
C
will build
D
have built
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Mr. and Mrs. Black ______ back _________.
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A
hasn’t come, yet
B
haven’t come , yet
C
haven’t come， already
D
hasn’t come , already
The director wants to make sure no one will solve the mystery until it ________ at the end of the horror film.
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A
is explained
B
will be explained
C
explains
D
has explained