He was busy writing a story , only _______ once in a while to smoke a cigarette.
#94052
A
to stop
B
stopping
C
to have stopped
D
having stopped
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—Well, a soup, a salad, and anything ______, sir?—An apple pie, please．
#95549
A
follows
B
to follow
C
followed
D
following
When ____ where he was born, Kale said he was a Londoner.
#92434
A
asking
B
asked
C
being asked
D
was asked
We should remember to save water resource and not to leave the water_____all the time.
#98729
A
to be running
B
to run
C
running
D
run
One winter day ____, he saw the tracks of animals in the snow and observed that the appearance of each one was different.
#95095
A
while he hunting
B
while hunting
C
while he hunt
D
while hunted