:1.This kind of dictionary _________well and 1,000 copies _____ so far.
A. sells, have been sold out
B. are sold, were sold out
C .are selling, have been sold out D. sold, had been sold out
2.His suggestions are ________.
A. as follows B.
following C. in the
following D. followed
3.It was in the lab _______was taken charge
of by Professor Black ______they did the experiment.
A. that ,where B. which,
that C. whom, that D. which, where
4.A guide is expensive ________.
A. to be employed B. to employ C. for
employing D. in order to
employ
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