问题补充:
----Do you know young man under the tree?
----Yes, but only a little, maybe he is university student.
A. a; an
B. a; the
C. the; an
D. the; a
答案:
A. a; an
B. a; the
C. the; an
(答案→)D. the; a
解析:句意:你认识树下的那个年轻男人吗?是的,但是只了解一点。他可能是一个大学生。第一空中有under the tree表示特指那个男人,第二空表示泛指,一个大学生,故选D