31. Being friends with foreigners_me to know more about other countries.
(A) help
(B) helping
(C) helps
(D) to help
答案:登入後查看
統計: A(222), B(155), C(830), D(61), E(0) #1909462
統計: A(222), B(155), C(830), D(61), E(0) #1909462