4. to read → reading, enjoy其后只可加動(dòng)名詞。

3. say → said， said是過(guò)去分詞作補(bǔ)足語(yǔ)， 而it是形式主語(yǔ)。

2. speak → to speak， 感觀動(dòng)詞/使役動(dòng)詞改為被動(dòng)語(yǔ)態(tài)時(shí)， 要將主動(dòng)態(tài)時(shí)省去的“to”還原。

1. was used to → used to， used to +動(dòng)詞原形表示過(guò)去的習(xí)慣， be used to+名詞/動(dòng)名詞表示習(xí)慣的持續(xù)。

10. The doctor advised me giving up to smoke.

　　 注 釋

9. You had better not to go there.

8. Smiling graciously, my offer was accepted by him.

7. You should avoid to keep company with such people.

6. It is difficult to make yourself understand in English.

5. His father would not let him to go.