1. (2016·黔西南) 根据句意，用方框中所给单词的正确形式填空，有两个词是多余的。

say,       friend,     water,    invent,     understand,     success,       retell

1. （1） The flowers in the garden need  now.
3. （2） The teacher is very  to us.
5. （3） She was asked  the story again.
7. （4） He is one of the greatest  in the world.
9. （5） I know little English. So I can't make myself  in America.