When this boy was asked to copy down the sentence ten times, he did nothing but _____deeply with a blank look on his face.
#12959
A
sigh
B
sight
C
sign
D
signal
推荐题目
The general manager thought of______ problems before he made the final decision. 
#14435
A
a good many
B
a great deal of
C
lots
D
a plenty
---Excuse me, is this seat______? ---yes. Go ahead.
#11849
A
occupied
B
flexible
C
temporary
D
vacant
This is not an economical way to get more water; ____, it is very expensive.
#14008
A
on the contrary
B
on the other hand
C
on the whole
D
on earth