The scientists are studying the effects of human activities______the environment.
#29004
A
in
B
at
C
on
D
with
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— Can you stay here and help me _______ ? — Sorry, I have a meeting to attend _______.
#27193
A
at the moment; for a moment
B
for the moment; in a moment
C
at that moment; in a moment
D
for the moment; for the moment
He did everything with a full heart. ______, he was always successful.
#27196
A
By the way
B
On one hand
C
As a result
D
At the start
People built a monument_________those who died for the country.
#25301
A
in praise of
B
in need of
C
in hope of
D
in honor of
