Don't you know that old man over there is university student

问题描述:

Don't you know that old man over there is university student
Don't you know that old man over there is university student?
A.an\an B.an\a C.the\an D.the\a
我比较着急,希望您快速能给我答复,
还有一个问题
His daughter is
A.seven years old B.seven-year-old C.seven-years-old,D.seven year old

选DHis daughter is A.seven years old B.seven-year-old C.seven-years-old,D.seven year old选A