Try _____ she might, Sue couldn’t get the door open.
#31906
A
if
B
when
C
since
D
as
推荐题目
He had to be reminded two or three times ________ he could avoid making the same mistake.
#33440
A
before
B
until
C
when
D
after
Everyone knows, perhaps except you, _______ your girl-friend is a cheat.
#34713
A
who
B
which
C
that
D
what
It will be many years ______ the doctors and medical scientists can find _____ for cancer.
#33643
A
since; cures
B
when; treatments
C
before; cures
D
until; treaments
While traveling in Sichuan，you can’t miss________people call “The National Treasure”—Giant Panda.
#32000
A
that
B
it
C
what
D
which