Our special thanks to go thousands of volunteers, without ____tireless work, none of this would be possible.
#31125
A
which
B
whom
C
whose
D
that
推荐题目
The dog may be a good companion for the old. _______, the need to take it for walks may be a disadvantage.
#32208
A
Besides.
B
However
C
Therefore
D
Instead.
On June 16, 2012, it arrested the world’s attention ______ Shenzhou9 spacecraft was successfully sent into the sky with the first Chinese woman astronaut.
#31978
A
that
B
what
C
if
D
why
Most probably it will be another 6 hours _____ you can have next meal, so each of you must have your stomach full.
#31309
A
since
B
when
C
after
D
before
Air pollution is getting more and more serious, so we must take action it is too late.
#31510
A
before
B
after
C
until
D
when
Bad habits, _______ formed, are difficult, and sometimes impossible to shake off.
#31345
A
before
B
once
C
until
D
unless