There was ______ time _____ Chinese used foreign oil.
#31021
A
/; when
B
a; while
C
a; when
D
/; while
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Those who are not active or______ diet is high in fat will put on weight quickly.
#34296
A
what
B
that
C
which
D
whose
______all of them are strong candidates, only one will be chosen for the post.
#30864
A
Since
B
As
C
If
D
While
Tom has two cousins, and ______ are engineers.
#31634
A
both of whom
B
both of them
C
none of them
D
either of them
It is uncertain side effect the medicine will bring about, although about two thousand patients have taken it.
#33258
A
that
B
what
C
how
D
whether
____ he has made up his mind to do something, nothing will stop him.
#33604
A
Once
B
Before
C
Although
D
As if