need sth doing是某物需要什么
如The meat need cutting
sb need to do是某人需要干什么
如I need to ask my teacher for answer
至于be supposed to do和be supposed to be doing
是时态不同
be supposed to do是一般现在时
be supposed to be doing
是现在进行时
英语一些短语词组的用法区别：need+v-ing和+to do的区别,be supposed to do还是be sup
2个回答
相关问题
-
be expected to do 和 be supposed to do 的区别
-
be supposed to be和be supposed to do有什么区别
-
be consided to do sth 和be supposed to do sth 有什么区别
-
need+to be done和need +doing的区别
-
be supposed to do和ought to有什么区别
-
need doing ,need to be done,need to do 三者的区别?
-
need的用法need to be done与need doing 有什么区别?need to be done是否表示被
-
求解be going to do sth， will do 和be do ing sth 的区别
-
need doing 和 need to be done有什么区别?
-
should 和 be supposed to 的区别与用法?