He was busy writing a story, only _____once in a while to smoke a cigarette.
#92270
A
to stop
B
stopping
C
to have stopped
D
having stopped
推荐题目
The girl sat there quite silent and still with her eyes ____ on the wall.
#97600
A
fixing
B
fixed
C
to be fixing
D
to be fixed
Here are some new computer programs _____ for home buildings．
#97715
A
designing
B
design
C
to design
D
designed
The witnesses ________ by the police just now gave very different descriptions of the fight. (2013·陕西，14)
#88741
A
questioned
B
being questioned
C
to be questioned
D
having questioned
We are only___ glad to do anything we can ___ her.
#98036
A
too, to help
B
very, help
C
too, help
D
very, helping
The discovery of new evidence led to__________
#98126
A
the thief having caught
B
catch the thief
C
the thief being caught
D
the thief to be caught