We need to ________an eye on all the activities to make sure that people stay safe.
A.catch
B.take
C.keep
D.bring
第1题
We?need to?ensure?the?credibility?of the?market()
第4题
A.A.
B.B.what do you need to do
C.C.what we need
D.D.that we need doing
E.E.which we need to do
第6题
We need to () how to solve the problem
A.think of
B.consider
C.suppose
第7题
______ we need air and water, so we need criticism and self-criticism.
A.Even though
B.So long as
C.Just as
D.Now that
第9题
() we need more practice is quite clear.
A.If
B.What
C.That
D./
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