There is a new problem involved in the popularity of private cars ____________ road conditions need ____________.
#74029
A
that; to be improved
B
which; to be improved
C
where; improving
D
when; improving
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. He wanted to make sure __________.
#70385
A
how we went there by bus
B
where did we go
C
what did we go there
D
when we went there
—Bob, look what you have done! You ruined the experiment.—It’s not my fault. I just carried out the instructions _____.
#67939
A
as told
B
as telling me
C
as telling
D
as I told
____ printed, this science fiction will be popular among the students.
#67782
A
Before
B
Unless
C
When
D
Once
My cousin keeps the photo ____ he can see it every day, as it always reminds him of his college days in Florida.
#73170
A
which
B
where
C
whether
D
when