We are short of clean safe drinking water, which is found to be the ______ in many third world countries.
#5681
A
example
B
event
C
case
D
object
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In the time of social reform, people’s state of mind tends to keep with the rapid change of society.
#7327
A
contact
B
progress
C
touch
D
pace
If you want to do international trade successfully, ______ of English is _______.
#6370
A
good command; a must
B
a good command; a need
C
a good command; a must
D
good command; must
Three criminals were caught and asked to aid in the .
#6382
A
interview
B
investigation
C
question
D
request
The girl got nothing in ______ for her kindness, which made her very sad.
#5603
A
prize
B
award
C
reward
D
medal
He knows so much about Russia that he's universally acknowledged as a(n) _____ on Russian affairs.
#5544
A
authority
B
routine
C
privilege
D
boundary