单项选择题

24（）

A．possible
B．necessary
C．unnecessary
D．impossible

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单项选择题

Why did the author’s aunt try to teach her children to speak Korean（）

A．To help her improve her Korean language skills.
B．To help them establish a Korean identity.
C．To he}p them succeed in the US.
D．To help them find a good jo

单项选择题

The underlined word precarious in the third paragraph means （）

A．unexpected
B．dangerous
C．unusual
D．ridiculous