问题
选择题
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
答案:D
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。