1 . He wasn’t brave enough to give a speech in public , so we tried our best to i_______ him to be confident. （根据首字母单词拼写）

2 . I wish I had a little sun to _______ _______ (清扫) coldness in the gloomy winter. （根据汉语提示完成句子）

3 .         in a university in the USA, Chinese students must have excellent speaking and writing abilities in English.

A．Educate

B．Being educated

C．To be educated

D．Having educated