Global warming caused by human being’s casual behaviour has become a major _______ for people all over the world.
#5589
A
conflict
B
concern
C
challenge
D
factor
推荐题目
—What did he say to you just now?—He told me that he would leave for Jinan .
#6684
A
the next week
B
next week
C
the following week
D
following week
In my opinion, the most famous to tourists in the city is the wooden tower.
#5715
A
attraction
B
impression
C
instruction
D
expression
Before leaving the country, you must be in_______of a solid permit.
#7394
A
charge
B
possession
C
demand
D
case