单项选择题

A．They are describing a new dustbin.
B．They are discussing the protection of environment.
C．They are collecting used batteries.
D．They arc looking forward to attending a lecture.
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单项选择题
A．More work as a teaching assistant.B．A higher salary.C．A longer vacation period.D．A research assignment.
A．More work as a teaching assistant.
B．A higher salary.
C．A longer vacation period.
D．A research assignment.
单项选择题
A．She lost Sally’s new address.B．Sally had to move unexpectedly.C．She’s no longer in contact with Sally.D．She’ll be glad to take the mail to Sally’s house.
A．She lost Sally’s new address.
B．Sally had to move unexpectedly.
C．She’s no longer in contact with Sally.
D．She’ll be glad to take the mail to Sally’s house.
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