We ______ to close the windows before we left the lab.
#45022
A
tell
B
told
C
are told
D
were told
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 Young trees____ quite often.
#44612
A
should water
B
should be water
C
should be watered
D
watered
Mr. Li ____ to give a talk in our school yesterday.
#44630
A
invites
B
is invited
C
was invited
D
invited
—May we leave classroom now?—No, you        . You        to leave until the bell rings.
#44886
A
mustn’t, are allowed
B
don’t have to, are supposed
C
needn’t, aren’t allowed
D
can’t, aren’t supposed