It is uncertain____side effect the medicine will bring about，although about two thousand patients have taken it.
#67381
A
that
B
what
C
how
D
whether
推荐题目
(2013·四川，7)He is so busy.He cannot afford enough time with his son________he wants to.
#67430
A
even if
B
as if
C
because
D
before
_____ you may have, you should gather your courage to face the challenge.
#68233
A
However serious a problem.
B
What a serious problem.
C
However a serious problem.
D
What serious a problem.
--- I can’t find Xiao Ping. Where did you see him this morning?--- In the reading room _________ he often studies in.
#69907
A
that
B
where
C
in which
D
the one
Marry was so excited _____ she received an invitation from her friend to visit Beijing.
#68025
A
where
B
that
C
why
D
when
You must be careful when ___ on the highway.
#67834
A
you driving
B
are driving
C
driving
D
you were driving