题目内容：

根据句意和汉语注释，在答题卡标有题号的横线上，写出单词的正确形式。

1.Good ____________ (发音) will impress others and make yourself confident.

2.One of the first _____________ (欧洲人) to discover America was Christopher Columbus.

3.Wide reading _________ (增加) your knowledge of new words.

4.David was happy because his teacher spoke ___________ (高度地) of his homework.