i'm used to( ) this kind of job?A doing B do 选哪个?

i'm used to( ) this kind of job?A doing B do 选哪个?
i'm used to( ) this kind of job?A doing B do 选哪个?

i'm used to( ) this kind of job?A doing B do 选哪个?
i'm used to( ) this kind of job?A doing B do
答案：A
be used to doing sth 表示：习惯于做某事.

A doing

be used to+doing，to是介词。
used to+ do，to是不定式符号。