问题
选择题
Some people feel easy and comfortable to be served by others but when they are asked to serve others ______, they are unwilling or even hate to do so.
A．in turn
B．in their turns
C．in their turn
D．by their turn
答案
答案：C
“有些人被别人服务感到很惬意舒服，但是当轮到他们为别人服务时就很不情愿甚至讨厌做。”in turn“轮流” in one’s turn“轮到某人”，答案C。