It is really a challenge for me to finish it. In order not to be disturbed, I spent three days ______ in my study surfing the internet to do the research.
#96822
A
locking
B
locked
C
to lock
D
lock
推荐题目
The boy seated himself in the corner with his back to his father.
#88907
A
turning
B
to turn
C
to be turned
D
turned
The headmaster hurried to the concert hall only _________ the speaker
#98777
A
to find； left
B
to find； gone
C
finding； left
D
finding； gone
Gun control is a subject ______ Americans have argued for a long time.
#98917
A
of which
B
with which
C
about which
D
into which
.It is reported that a small ship ran into a rock at sea, _____ all ten people on board.
#97682
A
killing
B
to kill
C
killed
D
kills
Many parents happily pay a lot of money, only ______ the tours are not rewarding enough for their children.
#92508
A
to find
B
find
C
having found
D
to have found