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3
A)Return to the office.
B) Buy another smartphone.
C)Go to the man's home.
D)Cancel their trip.
4
A) Write some invitation letters.
B) Put up a conference poster.
C) Work out a meeting schedule.
D)Prepare some documents.
5
A)She stayed with her parents.
B) She volunteered in a museum.
C)She made a survey in a school.
D) She went traveling abroad.
Section BConversation 16
A) Its shipping terms.
B) Its business hours.
C) Its delivery fees.
D) Its after-sales service.
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