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
The boy was so tired that he fell asleep ______ his mother could take off his clothes．
#32555
A
before
B
after
C
while
D
when
Helen plays the violin ________, if not better than, Kate.
#34029
A
as well
B
so well
C
as well as
D
so well as
Perseverance is a kind of quality, and that’s ______ it takes to do anything well.
#33530
A
what
B
that
C
when
D
why
People in Tianjin are proud of ______ they have achieved in the past few years.
#31675
A
that
B
which
C
what
D
How
It is obvious that John is unhappy. _________, it comes as no surprise that she has decided to change her job.
#32799
A
However
B
Otherwise
C
Moreover
D
Therefore