_________ is a growing world problem, and nowadays the United Nations and its member countries _________hard to deal with it．
#6050
A
Desertification; are working
B
Desertified ; worked
C
Desert; work
D
Desertification; have worked
推荐题目
The beautiful ________ beyond the mountain was so beautiful that the tourists couldn’t_____themselves away from it.
#5390
A
scenery; tear
B
view; take
C
sight; keep
D
places of interest; pull
The __________ of his books among parents and the recommendation of experts both at home and abroad have quickly made him a celebrity educator.
#5386
A
similarity
B
popularity
C
personality
D
possibility
He doesn’t work but he gets a good _______ from his investments.
#6267
A
wage
B
earnings
C
income
D
salary
There are ten______teachers and two hundred______students in the school.
#7079
A
women；girl
B
woman；girls
C
women；girls
D
woman；girl