Just as the experts _______ it, this kind of material is not natural, but man-made.
#78802
A
get
B
put
C
make
D
mean
推荐题目
He had to _______ paying the bills because of a lack of money.
#72451
A
put down
B
put off
C
put out
D
put aside
The temperature in this mountainous area ___ from day to day.
#73564
A
ranges
B
exchanges
C
varies
D
transforms
I wonder why he hasn't __ any of my letters for such a long time.
#81113
A
replied
B
replied to
C
answer for
D
asked
Nowadays everyone is responsible for________a harmonious society in China.
#72780
A
making up
B
taking up
C
opening up
D
building up