I’m glad you’ve made great progress so far. Keep it up______ you must be successful.
#30637
A
and
B
while
C
so
D
or
推荐题目
He was told that it would be at least three months ___ he could recover and return to work.
#79972
A
when
B
before
C
since
D
that
Don’t start reading a book _____ you find that it’s one you can read with ease and understanding.
#32304
A
when
B
if
C
unless
D
Though
she was out of the room, he took a quick look at the papers on her desk.
#30733
A
If
B
While
C
Though
D
Unless
一Why didn’t you try your best to get on the bus?一I tried to，but ______ I could，it started moving．
#32478
A
until
B
when
C
before
D
after
The US army suffered a record 32 suicides in July 2011, the most it began publishing monthly figures in 2009.
#32189
A
since
B
when
C
while
D
though