A landing on Mars is within the _____ of current physical theory.
#6916
A
scheme
B
scope
C
scrap
D
scale
推荐题目
A dark cloud is a _______of rain.
#6665
A
sign
B
signing
C
mark
D
signature
This chemical works _____.
#7336
A
is rebuilding
B
is being rebuilt
C
are being rebuilt
D
is being rebuilt
Ten years had passed. I found she had _______. 
#7234
A
a few white hairs
B
a little white hair
C
some white hair
D
more fifty hair
Never judge a man by his _____ alone — you might be fooled by what he looks like. 
#5560
A
appearance
B
character
C
intelligence
D
application