Examination compositions, together with most business letters and government reports, are the main situations ____ formal language is used.
#72137
A
in which
B
on which
C
of which
D
for which
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I have two grammars, ______are of great use. 
#73806
A
all of which
B
either of which
C
both of that
D
both of which
 Please check the list carefully ________________ make mistakes.
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A
so not as to
B
so as not to
C
so as to not
D
not so as to
Light blue isthe best colour   me.
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A
that fits
B
that suits
C
which fits
D
which suits
______you have got a chance, you might as well make full use of it.
#68424
A
Now that
B
After
C
Although
D
As soon as