急.怎么判断!With his son,____ ,the old man felt unhappy .A.to dis

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急.怎么判断!
With his son,____ ,the old man felt unhappy .
A.to disappoint B.to be disappointed C.disappointing D.being disappointed
为什么那么选啊?不定式和动名词在用法上有什么区别吗?

C.disappointing形容词做宾补,意思是由于他儿子让他失望,这位老人很难过.
再问：谢谢，答案也是C，能不能说一下ABD的区别啊，在这里disappointing的用法是动名词做宾补吗！为什么to disappoint不可以啊！
再答： disappointing是分词化了的形容词做宾补。to disappoint 是不定式，如用在这表示的是宾语即他儿子要去做的事（使。。。失望）to be disappointed 也表示将来要失望being disappointed 表示正在失望
再问：谢谢，不过还是有点糊涂。

急.怎么判断!With his son,____ ,the old man felt unhappy .A.to dis With his son ___ ,the old man felt unhappy. with his son（）,the old man felt unhappy. With his son _____,the old man felt unhappy. with的复合结构,With his son _____,the old man felt unhappy. With his son so disappointing,the old man felt unhappy.由于儿子如请问这道英语选择题的结构是什么?With his son ( ),the old man felt unhappy. With his son _______,the old lady felt unhappy． With his student __,the teacher felt unhappy.A.disappointed the old man likes talking ( )the phone with his son. THE old man -------------------his son The old man hasn’t heard ____ his son for a long time. This