Since the recent river pollution in several provinces, people _______ more and more attention to the quality and safety of drinking water.
#100455
A
pay
B
are paying
C
have paid
D
have been paying
推荐题目
.Water as well as other resources ______ all over the world every day.
#103858
A
is wasted
B
are wasted
C
waste
D
wastes
—What a pity!—Yes, I ____ his not trying it, but in vain．
#102055
A
was suggesting
B
will suggest
C
would suggest
D
had suggested
This machine _____. It hasn’t worked for years.
#104567
A
didn’t work
B
wasn’t working
C
doesn’t work
D
isn’t working
It is suggested that some skills teachers ________ to teach the children in these mountainous areas .
#102990
A
must be sent
B
be sent
C
should send
D
should send for
---Oh, it’s you! I ______ you.--- I’ve just had my hair cut.
#100348
A
don’t recognize
B
didn’t recognize
C
haven’t recognized
D
hadn’t recognized