As there is less and less coal and oil, scientists are exploring new ways of making use of ______________ energy, such as sunlight, wind and water for power and fuel.
#18252
A
abrupt
B
alternative
C
authentic
D
abstract
推荐题目
It is ____the ancient temple at the top of the mountain.
#18106
A
worth to visit
B
worthwhile visit
C
worthwhile visiting
D
worthy being visited
Millions of youngsters across Europe could suffer ____ hearing loss after five years if they listen to MP3 players at too high a volume for more than five hours a week, EU scientists warned.
#19663
A
temporary
B
permanent
C
frequent
D
extraordinary
The reference she made to her friend, the poet, was interesting but too _____ for anyone to appreciate.
#20372
A
drastic
B
dull
C
obscure
D
distinct
I'm lucky because my job has_____hours, and I can come and go pretty much as I want.
#20824
A
changing
B
flexible
C
basic
D
moveable
--- The report is difficult to write. --- You can surf the internet, where you can find _____ information and useful expressions.
#19065
A
a lot
B
a good many
C
plenty of
D
a large number of