Wind is now the world’s fastest growing ________ of power.
#10583
A
source
B
sense
C
result
D
root
推荐题目
We are waiting until the weather ________ a little.
#13368
A
takes up
B
picks up
C
turns up
D
makes up
The doctor told me to take the medicine_____.
#12998
A
every fourth hours
B
each fourth hour
C
each four hours
D
every four hours