The problem ________ this material can be used in our factory has been solved.
#32004
A
that
B
what
C
whether
D
why
推荐题目
(2014·兰州高三质检)Our country is developing at an amazing speed，which is________makes me feel so proud.
#30033
A
what
B
why
C
that
D
where
Take the note as a reminder ________ you forget to buy some sweets for the kids while shopping there.
#30406
A
in case
B
so that
C
even if
D
as if