— __________ when has the country been open to international trade?— 1978, I suppose.
#28614
A
Since
B
In
C
From
D
After
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We often go to ________ school library because we can have such easy access ________ the Internet there.
#26523
A
the; on
B
the; to
C
不填; with
D
不填; of
It is amazing that the little boy can swim ______the river ______100 meters wide.
#25918
A
across; measuring
B
over; measured
C
across; to measure
D
through; measuring
Mr．Smith gave the attendants a wonder lecture the company in the international conference.
#25727
A
on behalf'of
B
owing to
C
in the place of
D
standing for