It is said that another new underground train ______ not far from the center of the city.
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A
is to be built
B
has built
C
is to build
D
be built
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Stamps are usually used _____letters.
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A
to sending
B
to send
C
for send
D
for sent
— May we leave the classroom now?— No, you _______. You _______ to leave until the bell rings.
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A
mustn’t; are allowed
B
can’t; aren’t allowed
C
don’t have to; are allowed
D
needn’t; aren’t allowed
Our classroom _____ every day, so it’s very clean.
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A
cleans
B
is cleaning
C
is cleaned
D
cleaned