1 . All the boys are wearing white s________ (衬衫).

2 . All the boys look so cool in white s________ and black trousers.

3 . All the boys are wearing white ________(衬衫) and they look very cool.

4 .
1. Your car is ready,_________(先生).
2. He dreamed to be an_________(军官).
3. I want to buy a_________(衬衫)for my father.
4. They were__________(笨)not to follow your advice.