Every possible means _______ to prevent the crash , but the computer doesn’t still work．
#4644
A
is used
B
are used
C
has been used
D
have been used
推荐题目
Mr. Smith was so angry at all ______ Bill was doing ______ he left.
#59062
A
that; what
B
that; that
C
which; which
D
what; that
I regreted_________him the news that our team had failed.
#4999
A
to tell
B
telling
C
having told
D
to have told
Scientists photographed for the first time ever _____ wild gorillas used a stick to test the depth of a pool before getting into it, according to a recent study.
#59036
A
which
B
what
C
that
D
when
.He _______ to act out the story he had read, but he failed.
#4772
A
deserved
B
tried
C
managed
D
pretended