With his attention _________ on his book, he didn’t notice someone entering his room.
#90427
A
concentrating
B
concentrated
C
to concentrate
D
concentrates
推荐题目
___ H1N1 flu from spreading, our government has taken some effective measures.
#96789
A
Prevent
B
Preventing
C
Prevented
D
To prevent
_____ on time， this medicine will be quite effective.
#98764
A
Taking
B
Being taken
C
Taken
D
Having taken
Mike’s never willing to change any of his opinions. It’s no use ______ with him.
#88364
A
to argue
B
arguing
C
argued
D
have been argued
You can’t imagine what great difficulty I had _______ a ticket for Jay Chou’s concert in Zhengzhou.
#96590
A
to get
B
getting
C
got
D
get
---What do you expect your son to succeed in? --- _________ the entrance exam.
#96692
A
To pass
B
Passing
C
Get past
D
Past