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
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If we keep wasting so much energy, ________ are that our oil wells will dry up and the environment will be destroyed.
#5745
A
problems
B
difficulties
C
questions
D
Chances
Although I liked the appearance of the house, what really made me decide to buy it was the beautiful________ through the windows.
#6345
A
view
B
scene
C
sight
D
scenery
—Why haven’t you bought any butter? ---I_____ to but I forgot about it.
#6863
A
liked
B
wished
C
meant
D
expected