21. Joe was never a morning person in college. Now he has worked at this 9-to-5 job for three months and he               getting up early to go to work on time.
(A) used to
(B) is used to
(C) has used to
(D) will have used to

used to+ 原V  過去習慣  (以前會...

He used to cook at home. 他過去經常在家煮飯

get used to  +Ving/ N  從不習慣轉變為習慣

After a while, Andy got used to living on his own.

be used to +Ving/ N  現在習慣於

I am used to drinking coffee in the morning.

*物品 +be used to + 原V (被動)

Sunglasses are used to protect eyes from the sun’s damaging ultraviolet (UV) rays.

來源: https://tw.amazingtalker.com/blog/zh-tw/zh-eng/2907/

Now (he has worked at this 9-to-5 job for three months and) he               getting up early

現在式 選B is used to