Nowadays scientists are working hard to find out ______ to do with air pollution.
#37100
A
how
B
why
C
when
D
what
推荐题目
I didn’t know the place very _______before. But now I’ve known _____about it.
#40674
A
much, much
B
much, a lot
C
well, little
D
well, much
— _______is the theme park?— It’s about half an hour’s bus ride.
#36040
A
How long
B
How soon
C
How far
D
How often
Tom likes to play ______ violin in the morning and play ______ volleyball in the afternoon.
#40163
A
the; the
B
the; /
C
/; the
D
/; /
workers in the factory over two thousand.
#43491
A
The number of; is
B
The number of; are
C
A number of; is
D
A number of; are
Eddie eats __________ food every day. Hobo thinks he needs some __________.
#42256
A
too much, exercises
B
too many, exercises
C
too many, exercise
D
too much, exercise