Can you tell me the name of the factory___ you visited last week?
A. what
B. where
C. /
D. when
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the professor, _____ as a splendid speaker, was warmly received by the students.
A. To be known
B. knowing
C. known
D. having known
Where are the____ seat?
A. reserving
B. reserved
C. to be reserving
D. having reserved
__their homework, they went out to play.
A. Finished
B. Finishing
C. Being finished
D. Having finished
__with his report, the boss told John to write it all over again.
A. Not being satisfied
B. Not to satisfy
C. Not having satisfied
D. Not satisfying
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