__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
I've never seen the young man__next to the doctor.
A. sits
B. sitting
C. sat
D. to sit
He bought an expensive coat_he had no job.
A. although
B. since
C. who
D. however
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