We six days a week but now we only work five days.A. used work B. are used to workC. use

问题补充：

We six days a week, but now we only work five days.

A. used work

B. are used to work

C. used to working

D. used to work

答案：

A. used work

B. are used to work

C. used to working

(答案→)D. used to work

解析：be used to sth习惯于某事;used to do sth过去常常做某事. sth be used to do sth某物被用来做某事。句意：我们过去常常一周工作六天，但是现在我们只工作五天。结合语境可知选D。