ask sb. to do sth.什么意思
offer sb sth和offer sth to sb
suggest sb to do还是doing
talk with sb和talk to sb有什么区别
make sb to do和make sb do的区别
let sb.do 还是 to do还是doing
help sb do和help sb to do的区别
help sb to do sth造句
meet sb. to do sth.
advise sb to do还是doing