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/completed /carrying out/to try and do）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 SiteWatch™ Telematics permits you to normally know exactly where Each individual machine is, Doing work standing and when routine maintenance or provider is re... https://judahkdodr.pages10.com/details-fiction-and-case-study-answers-72273239