单项选择题

What is the original meaning of the tip

A．It is to reward the efforts of good service.
B．It is a promise of on-time service.
C．It is used to reduce uncomfortable feelings of inequality.
D．It serves no useful function.

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单项选择题

What can we learn about Peter from the conversation.'

A．Peter cannot wait to attend the course.
B．At first he was reluctant and timid.
C．Mike enjoyed the open-air life very much.
D．Peter did not get well along with his classmates.

单项选择题

Which of the following is most appropriate to describe Peter after the camping

A．He is now very sensitive.
B．He is more independent than before.
C．His physical condition improved a Int.
D．He is much more persistent and stronger.