They are also worried _________ all the students are able to make good use of the spare time after school.
#33690
A
about
B
whether
C
that
D
what
推荐题目
Everything was placed exactly ________ it used to be before she left the laboratory.
#30251
A
why
B
when
C
where
D
though
—Are you guys ready for “The Campus Singers Competition”?—Sure！Since we are young, try it, _____ we will regret!
#31137
A
and
B
but
C
or
D
then
______ there was no conclusive evidence, most people thought he was guilty.
#32649
A
When
B
As far as
C
As long as
D
While