I saw him when I passed by.

Bob, you do well in English. Can you help me with it— Sure, but it’s ___________ for you to find your own learning ways.

There are a lot of ______ of bike riding. –I agree. It’s good for environment and it saves money.

下列对联，最适合祝贺老师70岁寿辰的一联是 （ ）

The little girl was so _____ when she saw the dog that she dared not move at all.