Topic 71: be good for/to/at/of

試試這些題目：

1. My grandparents are good ___ me.
2. Swimming is good ___ us.
3. I am good ___ swimming.
4. It is good ___ him to lend you his eraser.

試試理解這些句型：
(Someone) is good to (someone).
（人）對（人）好。

(Doing something) is good for (someone).
（事）對（人）好。

(Someone) is good at (doing something).
（人）擅長（事）。

It is + good + of + (someone) (to do something).
It is good of （人）（去做某事）

圖片來源： “Ace Minds: Prepositions” Book 3, published by Kidz Education