Mum prepares breakfast for us every morning so she early.A. used to get upB. is used to

问题补充：

Mum prepares breakfast for us every morning, so she early.

A. used to get up

B. is used to get up

C. used to getting up

D. is used to getting up

答案：

A. used to get up

B. is used to get up

C. used to getting up

(答案→)D. is used to getting up

解析：本题的后半句表示的意思是她习惯于早起，be used to表示习惯于某事，to为介词，故后跟动词要用动名词doing，故本题选D。