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
推荐题目
To live in honor, he came from a poor family, was his ambition.
#33382
A
though
B
if
C
unless
D
however
His glasses, _____he was like a blind man, were broken.
#32604
A
with which
B
with it
C
without which
D
without it
------What do you think of her? ------I thought her nice and honest I met her.
#32556
A
the first time
B
for the first time
C
first time
D
by the first time
Your uncle seems to be a good driver: _______, I wouldn’t dare to travel in his car.
#80194
A
even so
B
even though
C
therefore
D
so