Choose and fill.（选词填空）
(Whose, longer, runs, Who, better, good)
1. Who sings _________ than Tim?
2. Are you ______ at it?
3. _________ ruler is long?
4. Whose hair is ____________ than Lily’s?
5. Amy ____________ faster than Lily.
6. _________ is shorter than Lily?

The Great Wall is ________ of all in the world. (   )

A．the longest

B．longest

C．the tallest

D．the longer

词性转换。
【小题1】hippo(复数) ___________
【小题2】fish(复数) ___________
【小题3】ostrich(复数) ___________
【小题4】butterfly(复数) __________
【小题5】heavy(比较级) _________
【小题6】carefully(动词) __________

Tom often goes to the English club and now he can speak English much  than before. (   )

A．fluent

B．fluently

C．more fluently

D．most fluently

It is ________ famous place to visit. (   )

A．most

B．the most of

C．the most