With sufficient scientific information a manned trip to Mars should be _____.
#20853
A
obtainable
B
potential
C
considerable
D
feasible
推荐题目
We all thought that Betty could have run _______ if she had worn the sports-shoes that day.
#18548
A
even faster
B
more slower
C
much quickly
D
still fastest
My brother likes eating very much but he isn’t very ____ about the food he eats.
#19395
A
careful
B
cautious
C
particular
D
generous
The old father ______ the project ten years ago but didn’t live long enough to complete it sohis sons and daughters ______ and are continuing doing it now.
#19246
A
came up; picked it up
B
put up; kept it up
C
took up; took it up
D
set up; brought it up
There was a (an) __________ silence between us after we were left alone in the sitting-room.
#18948
A
awkward
B
angry
C
adequate
D
patient
I don’t think he is a good boy; I am _____his empty talk.
#18729
A
grateful for
B
tired of
C
crazy about
D
concerned about