On April 1, Jim tried to play a trick ______ his teacher but the teacher wasn’t taken _____.
#25629
A
by; on
B
in; in
C
on; in
D
on; on
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Tom , you ______ leave all your clothes on the floor like this!
#25704
A
wouldn’t
B
mustn’t
C
needn’t
D
might not
Despite their______of interest, Fleming kept trying to develop chemical ______ it would be safe and effective.
#26306
A
lack, so as to
B
lacking, so as to
C
lack, so that
D
lacking, so that
We are all aware _________ the many threats _________ the environment and we need to take action to prevent us from the bad consequences.
#25696
A
of; to
B
of; on
C
that; to
D
that; on
．Jack was still very calm, ______ the quarrel with the boss, and greeted every person he met on the way back to his office.
#27661
A
in spite of
B
due to
C
as a result of
D
because of
Sometimes proper answers are not far to seek ________ food safety problems.
#25334
A
in
B
to
C
on
D
after