Clean water and fresh air are essential for our daily life, _______ we can’t live.
#66990
A
by which
B
without which
C
that
D
on which
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 ________, he has finished his job ahead of time.
#70431
A
As is expected
B
Which is expected
C
It is expected
D
It is as expected
Come and see me whenever ____ .
#68238
A
you are convenient
B
you will be convenient
C
it will be convenient for you
D
it is convenient to you
 When someone talks, everyone is expected to listen, no matter how ______.
#67983
A
the person’s speaking may be dull
B
dull the person’s speaking may be
C
may the person’s speaking be dull
D
dull may the person’s speaking be