The decision about such a big railway project can not be made ______ each member of the board agrees.
A.if
B. unless
C. though
D. as
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There was no proof to show that this young man had committed thecrime,______ he was set free.
A. But
B. for
C. or
D. so
No sooner ______ than he was asked to start an another business trip.
A.has he arrived home
B. had he arrived home
C. he had arrived home
D. he arrived home
The sales department of a company is engaged in ______ the productsand making profi ts.
A.having sold
B.sell
C. being sold
D.selling
The service in the hotel was so poor ______ we couldn’t stay in
A. that
B. when
C. which
D. because