imp__sonate（模仿、扮演）
A. or
B. ar
C. er
D. ur
I am _____ receiving your reply at earliest convenience.
A. looking forward to
B. checking on
C. rolling on
D. bringing up
She ________explained how the plan worked so that everyone can understand it.
A. unconsciously
B. painstakingly
C. crackly
D. otherwise
The two friends had been surprised to __________each other in a totally different country.
A. run into
B. run out of
C. run away
D. run after
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