---Why was Mr. Smith suddenly fired by his boss?---Because he was found_______ in the non-smoking office.
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A
smoking
B
smoke
C
to smoke
D
smoked
推荐题目
The professor explained this theory so clearly that this phenomenon was easy enough ________.
#95942
A
for us to work out
B
working out
C
for working out
D
to working out
Our director is out. I'll have her ________ you on the matter when she's back.
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A
to contact
B
contacting
C
contact
D
contacted
.The day for the meeting ________, they all left the conference room.
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A
was fixed
B
fixing
C
fixed
D
being fixed
The scientist spent years alone in the forest，____ by eating wild fruit and small animals．
#88542
A
surviving
B
survived
C
to survive
D
having survived