tom's father______ morning exercise,but now he is ill A,is used to do B,used to doC,is used to doing D,get used to doing

tom's father______ morning exercise,but now he is ill A,is used to do B,used to doC,is used to doing D,get used to doing
tom's father______ morning exercise,but now he is ill
A,is used to do B,used to do
C,is used to doing D,get used to doing

tom's father______ morning exercise,but now he is ill A,is used to do B,used to doC,is used to doing D,get used to doing
A
翻译：TOM的爸爸(以前）习惯于做早操,但现在他生病了.