Used to, is used to

[Ju]

Don't worry, she.........by herself.

A. Is used to living
B. Is used to live
C. Used to living

I feel both A and B are right.
What do you all think?

Thanks.

 

[Ju]

Right. Th model answer is A.

Can someone explain, please?

Thanks.

 

[Ju]

You said both are used to. What are the differences, please ?

 

[emsr2d2]

They both contain "used to" but they are not both just "used to".

"used to" = did (something) in the past.
"be used to" = to be accustomed to (something)

The first is followed by the bare infinitive. (I used to live alone.)
The second is followed by a noun phrase or gerund. (I am used to the solitude/I am used to living alone.)

 

[andrewg927]

To expand on what other people have said, B is wrong because the structure is "is used to living". C is wrong because it lacks "is." When "to be" is missing, we use an infinitive. If C became "used to live," then that would be correct.