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
―Are you satisfied with what she has done? ―Not a little. It can’t be ________.
#18939
A
any worse
B
any better
C
so well
D
so bad
Though ____ to see the strangers, the housewife gave them a big smile and said hello.
#59555
A
surprising
B
to be surprised
C
surprised
D
having surprised
Not all parts of the interior (腹地) of Australia are easily _____, because it is very hot and not many people live there.
#18129
A
admirable
B
available
C
adjustable
D
accessible
Your job here is only________, for you will be removed from it when we have a proper post for you.
#17879
A
permanent
B
compulsory
C
temporary
D
fundamental
You’d better go there by train.The train ticket is the airplane ticket.
#19273
A
as cheap three times as
B
as three times cheap as
C
three times cheaper than
D
cheaper three times than