. It is clear that the whole world is passing through a social revolution in which a central _____ must be taken by scientists and technologists.
#6738
A
process
B
attention
C
measure
D
part
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Our manager has gone to Paris, so I have to deal with all the letters during his ________.
#6244
A
appearance
B
distance
C
absence
D
presence
.The businessman asked a much ______ price than ______.
#6524
A
high, expecting
B
higher, expecting
C
higher, expected
D
more expensive, expected
Those should be a total on smoking in office for our health.
#5318
A
rule
B
ban
C
regulation
D
permission