想一想，选一选。

1. 当你想问别人的妈妈是什么职业时，你应说：[ ]

A. What is your mother?

B. Where is your mother?

2. 当你向别人介绍你姐姐的爱好时，你应说：[ ]

A. My sister like music.

B. My sister likes science.

3. 当你想说“扮演医生”时，你应说：[ ]

A. Act like a driver.

B. Act like a doctor.

我国在采用定牌和无牌出口时，除非买卖双方另有协议，一般都应在出口商品和包装上标明“中国制造”字样。 ( )