There’s some doubt __________he’ll keep his promise.
#31569
A
whether
B
when
C
that
D
which
推荐题目
The last time we had great fun was ________ we were visiting the Water Park.
#30460
A
where
B
how
C
when
D
why
(2013·兰州模拟)Living in the eastern part of the city has its problems, shopping is not the least.
#30596
A
with which
B
of which
C
for which
D
which
What I am concerned about is ________ they could fit in with society and how we can create more opportunities for them.
#30554
A
which
B
what
C
whether
D
who
The _____ you make, the _____ you will make.
#30387
A
more efforts ; greater progress
B
greater progress ; greater efforts
C
more efforts ; more progresses
D
many more efforts ; much progress