When I reached the beach,the others had left on their () back to mainland.A.trip B.sail C.voyage D.travel为什么选A不选C?
问题描述：
When I reached the beach,the others had left on their () back to mainland.
A.trip B.sail C.voyage D.travel
为什么选A不选C?
答
on one's trip 为固定搭配，在某人的旅途中。
答
When I reached the beach,the others had left on their (trip) back to mainland.
.trip 旅途 / 旅程
voyage 航行 / 远航
所以 trip 较合适了.