They do have  a different          to the  problem of overpopulation.
#6273
A
solution
B
opinion
C
decision
D
conclusion
推荐题目
The doctor told him to take a fat-free ________. 
#6769
A
food
B
diet
C
health
D
vegetable
I’ll let you know_____ I receive Brain’s e-mail message.
#6627
A
for the moment
B
at the moment
C
the moment
D
by the moment