It is uncertain ___ side effects these weight-loss drugs will bring about, although hundreds of thousands of patients have taken it.
#32181
A
that
B
whether
C
how
D
what
推荐题目
They were surprised that a child should work out the problem____ they themselves could not.
#31497
A
once
B
unless
C
while
D
if
I showed an old friend of mine around the city, surprise, the changes had been so great.
#34149
A
whose
B
which
C
to whose
D
to which
It is still under discussion ________the old bus station should be replaced with a modern hotel or not.(2011·重庆)
#29980
A
whether
B
when
C
which
D
where
Alice’s father always brings her a nice gift he returns home from his business trip.
#32690
A
by the time
B
at the time
C
every time
D
in the time