用所给词的适当形式填空

I'm doing a survey about how ________ (improve) English quickly.

【小题1】Although David is only 2 years old, he can learn to sing the song by_______ (he).
【小题2】I'm doing a survey about how __________ (improve) English quickly.
【小题3】My daughter likes collecting. She has collected all kinds of ___________ (knife).
【小题4】I think there will be ____________ pollution in the future if we plant more trees now. ( little )
【小题5】He did his homework so __________ that he made few mistakes. ( careful )
根据语境或句意，从方框中选择恰当的词并用其正确的形式填空，使句子意思正确完整，并将答案填入答题卡上指定的位置。

【小题6】"Would you mind _______ the dishes?" "OK. I'll do them right away."
【小题7】 Henry gets on well with everyone in our class. He's always _________    to all of us.
【小题8】Martin was_    in Chinese history after he came to China and he read a lot about it.
【小题9】Teenagers are not _________ to smoke because smoking is bad for their health.
【小题10】_________ of children like watching the TV show Where Are We Going ,Dad? It's really fantastic.