It's our duty (责任) _____ old people to cross the road. [ ]A. to help B. helps C. to hurt D. hur
A. to help B. helps C. to hurt D. hurts
题目简介
It's our duty (责任) _____ old people to cross the road. [ ]A. to help B. helps C. to hurt D. hur
题目详情
A. to help
B. helps
C. to hurt
D. hurts
答案