问题补充:
. If a teacher gives a student hearty smile, the student will treat the teacher as agony aunt.
A. The; the
B. 不填; an
C. 不填; the
D. a; an
答案:
A. The; the
B. 不填; an
C. 不填; the
(答案→)D. a; an
解析: give sb a ...smile “给人一个...的微笑” an agony aunt 一个知心姐姐/阿姨