单项选择题

In which case mentioned in the passage would an automatic language translator be helpful（）

A．A medical emergency．
B．Police action．
C．Traveling．
D．All of the above．

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单项选择题

When the man told them the times of meals at the hotel, Mrs. Smith felt（）

A. disappointed
B. exited
C. delighted
D. satisfied

单项选择题

You can improve your health by（）

A. bringing physical activity into your timetable
B. eating less and less during short periods of time
C. relaxing and keeping cool
D. getting as many activities as you can