英语单句改错练习·多不定式符号1. I saw him to fall off the bike just now.2. I would rather walk to the cinema than to take a taxi.3. She preferred to stay at home rather than to go out for a walk.4. Why not to try taking a boat to go there?5. I could do nothing but to wait there.6. You’d better to lose some weight.7. If she comes here, I will let you to know.8. We should serve our customers heart and soul.9. I will come back to home tomorrow.10. I heard him to sing just now.解析：1. 去掉to。see后面用不定式作宾补要省略to。2. 去掉to。than后面的不定式要省略to。3. 去掉to。rather than后面的不定式要省略to。4. 去掉to。why not do sth? 句式不能用to。5. 去掉to。but作介词，后面如接不定式，前面有do的话，不定式不能用to。6. 去掉to。had better后面不能用to。7. 去掉to。let后面用不定式作宾补要省略to。8. 去掉to。serve 为及物动词，其后可直接接名词。9. 去掉to。home 为副词，前不可用to。如：回家 go home10. 去掉to。hear sb. sing (听全过程) 或hear sb. singing（听某人正在唱歌） 说明:引用此文请注明出处,并请保留该文章链接地址,谢谢~~