I used to eat a lot in the morning. However I used to eating anything now because I alwa

问题补充：

I used to eat a lot in the morning. However, I used to eating anything now because I always sleep late.

A. don’t

B. didn’t

C. haven’t

D. am not

答案：

A. don’t

B. didn’t

C. haven’t

(答案→)D. am not

解析：句意：我过去常常早饭吃很多。然而现在我不习惯于吃任何东西因为我总是睡得很晚。used to do sth意为“过去常常做某事现在不做了”；而be used to doing sth意为“习惯于做某事”；故选D。