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.
#18985
A
original
B
alternative
C
convenient
D
staple
推荐题目
House prices keep rising these days. A flat in our city costs ____ now as in 1990.
#19572
A
as three times much
B
as much three times
C
much as three times
D
three times as much
—Are you satisfied with what he has done?—Not in the least. It couldn’t be .
#19136
A
So bad
B
much better
C
the best
D
any worse
Don't keep your mouth ___ if you want to improve your spoken English.
#20364
A
shut
B
shutting
C
shutted
D
to shut
With online shopping increasingly popular, the Internet is seen as a(n) way of reaching target customers.
#17636
A
temporary
B
complex
C
accurate
D
efficient