1. How nice the bananas are.

这些香蕉多好啊！

2. Her father used to be a doctor.

她父亲以前是名医生。

3. Tom has gone to the market with his younger sister.

汤姆和他妹妹去市场了。

4. It's polite to get on the bus one by one.

排队上公交车是礼貌的行为。

5. They were flying a kite when I got there.

我到那里时他们正在放风筝。