( )sb.do sth.3种答案和( )sb.to do sth.
( )sb.do sth.3种答案和( )sb.to do sth.
-----sb to do sth 和 -----sb do sth
help sb do sth 和help sb to do sth
make sb.to do sth.和 make sb.do sth.
ask sb do sth和ask sb to do sth
( ) sb.to do sth.
help sb with sth 和help sb (to) do sth的用法有什么区别?
help sb doing sth和help sb to do sth
help sb.to do sth和help sb.with sth.
Hear sb to do sth 和 hear sb doing sth
ask sb to do sth和ask sb doing sth
make sb do sth 和let sb do sth 和have sb do sth 和get sb to do