展开全部 在but后何时要接带to的不定式,何时要接不带to的不定式有一条简单的规则。那就是前面动词是do(does/did/carried out /doing/to carry out)时,后接不带to的原形不定式;如前面用的是其他的动词,则后面的不定式要加上to。 Case Study Help is The most superb and reliable online assignment help Sites world wide. With a long time of working experience, casestudyhelp. Hasan necessitates assist ... https://case-study-answers81520.bloguetechno.com/details-fiction-and-case-study-answers-72343908