问题
选择题
We usually take turns ______cleaning ,and today it is my turn ____it
A．to do; doing
B．doing; doing
C．doing ;to do
D．to do ;to do
答案
答案：D
本题考查短语搭配。句中考查take turns to do轮流做某事；it is one’s turn to do轮到某人做某事。句意：我们通常轮流打扫，今天轮到我打扫了。