26. They were ideal eco-tourists because __________________.
(A) these visitors worked side by side with the local people
(B) these visitors did not litter
(C) these visitors changed the environment
(D) these visitors cared for the natural state of the places they had visited
(E) these visitors brought money along
答案:登入後查看
統計: A(2), B(1), C(1), D(13), E(0) #2302848
統計: A(2), B(1), C(1), D(13), E(0) #2302848