用所給詞的適當形式填空1.Theboyistooyoungtoknowthe

問題詳情：

用所給詞的適當形式填空

1. The boy is too young to know the _________(dangerous) of smoking.

2. How _________ （excite）we feel!

3. Don’t worry. I remember ________ (shut) the window just now.

4. He ________ (come) back in an hour.

5. ________ (travel) by bus takes longer.

【回答】

er  ted ting elling

知識點：構詞法

題型：完成句子