by bike 或 on the bake(which)the author __of___ which(the book) is a teacherThe thought of going back home was ___all
that__ kept him happy while he was working aboard.等...
1 by bike固定搭配,he went to work by bike, and this bike was stolen yesterday2 同意2楼的答案,应该是of3 他在国外工作并保持愉悦心情的所有原因都可以归结为这一个原因,所以用all.而句子有all的从句,先行词要用that。...