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
She was clearly a customer at Scott' s, as she told the waiter that she would stick to her favorite．
#18368
A
casual
B
common
C
regular
D
ordinary
I’m always ________ about what I say because careless remarks are likely to hurt others’ feelings.
#17967
A
enthusiastic
B
curious
C
doubtful
D
cautious
---Though Liu Qiang was able to complete in thr school spring sports, he is still our hero.
#18271
A
I can’t agree more
B
I can’t agree with you
C
I can’t agree any less
D
I don’t agree more
_________several times, but Mary still has no idea of how to do it properly.
#19683
A
Being shown
B
Having shown
C
Having been shown
D
I’ve shown her
_____ shouldn’t have part-time jobs because they are too young.
#34974
A
Thirteen years old
B
Thirteen-year-old
C
Thirteen-year-olds
D
Thirteen year olds