单项选择题

I listened to a radio program（）China’s entry into WTO.

A. talking
B. managing
C. concerning
D. engaging

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单项选择题

（）from life pressure, many people have to go out to work until they are tired out.

A. Suffering
B. To suffer
C. Being suffered
D. Having suffered

填空题

Why do more middle-aged adults have to take care of their aging parents Because people are living（）

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