We watched for them to pass.这里的pass为什么必须带to?

We watched for them to pass.这里的pass为什么必须带to? pass to 的用法 why 不能pass the key to them,而是pass them the key?急 pass on,pass to和pass on to的区别. pass on,pass to,pass on to! pass-to-pass accuracies是什么意思? pass to与pass on to的区别是什么 pass和to的区别 Pass me a knife to cut the bread with.这里的后置定语为什么是用to do形式而不是 pass on 与pass 区别 Pass sth.to sb.=Pass sth.on to sb.为什么?二者意思一 pass+sb+sth与pass+sth+to+sb的区别 pass sth.to sb 与pass on 的区别是什么 pass on/pass to/pass on to区别是什么