题目内容：

根据句意、中文提示或英文释义,写出句中所缺单词，使句子通顺。

1.Life is peaceful every day. Nothing ____ (出乎意料的) has happened  here.

2.Mother often opens the windows in the morning to let the f    air in.

3.He is        (缺席)from class again today.

4.—What’s your p _____  to study hard?    —To get good grades, of course.

5.When we learn English, we don’t have to t     every word into Chinese.