1.Mary is 8 years old. Kate is 8 years old, too.（保持原句意思）

Mary is  as Kate.

2.I an the tallest boy in my class.（保持原句意思）

I am taller than boy in my class.

3.Cars go faster than buses.（保持原句意思）

Busesgo asas cars.

4.We can't play football on the road. It's dangerous.（对划线部分提问）

; we play football on the road?

5.think,as,people, always, that, are, as, strong, we, each, other（连词成句）