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
—People often don't appreciate what they have, do they? —No, _________ they lose it.
#30726
A
if
B
after
C
until
D
when
John got his phone for his birthday, his parents don’t let him use it in school.
#31990
A
however
B
which
C
but
D
when
It is not what you said but the way you said it ____ made him angry.
#33746
A
what
B
which
C
who
D
that
(2011·四川)As is reported，it is 100 years ________ Qinghua University was founded.
#30451
A
when
B
before
C
after
D
since
I was so familiar with him that I recognised his voice ____I picked up the phone.
#31774
A
while
B
the moment
C
after
D
in case