The question is very important. It really needs _______.
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A
carefully discussing
B
carefully to discuss
C
to carefully be discussed
D
being discussed carefully
推荐题目
The boy pretended ______ his homework, when his parents came back home.
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A
to do
B
do
C
doing
D
to be doing
This agreement will be signed by the managers_________.
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A
concerns
B
concerning
C
concerned
D
to be concerned
Every minute is made full use of _______ our lessons.
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A
studying
B
to study
C
study
D
being studied