it's kind of difficult for .
it's kind of difficult for .
It's kind of difficult to b_____ the time needed for schoolw
it's kind . 用for 还是of
It's kind of you 、 kind for you
It's very kind of you...和 It's very kind for you...的区别
it's kind of you 和it's kind for you 的区别?
it's very kind of you[ ] ( do)that for me.
It's very kind of...
It's kind of you
it's very kind of you to help me与it's very kind for you to h
It's very kind ___you __me.A.for,help B.for ,helps C.of,help
请问句子中 词组意思It's difficult to the point of impossibility for t