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
Scientist are not sure about the ___________ of water on the Mars.
#6679
A
occupation
B
existence
C
demand
D
treasure
Antarctica holds 90% of the world’s ice, and most of its fresh water (70%) is in a frozen .
#5757
A
state
B
condition
C
situation
D
solution
As a doctor , it’s against my ______ to accept gifts from patients.
#6090
A
emotions
B
principles
C
regulations
D
opinions
Some cyclists make the ______ that traffic laws do not ______ them. It is not true, _____.
#5110
A
assumption; apply to; though
B
thought; apply to; however
C
assuming; apply for; though
D
idea; apply for; however
I had no idea how to calm her down. At last her strong emotion found in loud crying.
#5412
A
expression
B
impression
C
instruction
D
permission