Please don't call me at the office it's really necessary．
#31141
A
if
B
unless
C
otherwise
D
except
推荐题目
—What has made him look like lacking sleep?—_______ his wife is ill and he has to get up several times a night to attend to her.
#31700
A
For
B
Because
C
That
D
What
—Can a person enjoy the pleasure from his work?—________ he can have his interests and the work combined.
#30245
A
Although
B
Since
C
While
D
Unless
The story took place in Europe in the days before automobiles __ everyone used horses.
#32948
A
which
B
when
C
where
D
as
High school students should be given enough sleeping time , _______ they are busy with their study .
#31868
A
even so
B
as though
C
as if
D
even if