分别用look into, run across, smile at, think about造一个句子

look into
1. A committee was set up to look into the workers' grievances.
成立了一个委员会来调查工人的不满。

2. A working party has been set up to look into the problem.
已成立工作组调查该问题.

3. The government has set up a working party to look into the problem of drug abuse.
政府已成立工作组调查滥用毒品问题.

4. They stopped to look into the window.
他们停下来看看橱窗。
run across:

vi. 偶然遇见(不期而遇)

例句与用法:
1. One day she happened to run across Xiao liu.
有一天她碰巧见到小刘了。

2. Please tell the children to walk calmly across the road, not run across.
请告诉孩子们过马路时要镇静，不要跑着横穿马路。

3. One day I happened to run across her.
有一天我碰巧见到她了。
smile at: [ smail ]

对...微笑

例句与用法:
1. I never smile at people who are rude to me.
我决不会向对我无礼的人微笑。

2. He loved soft things, and would often smile at the touch of a soft teddy bear or other soft toy.
他喜欢柔软的东西，在