She ______________ (相处得很好) with her sister

get on with sb.和某人相处
get on well with sb.和某人相处得很好。
How are you getting on with A? 你和A相处得怎么样？

gets on very well

gets along well

keeps well

gets along well with
gets on well with

she is on good terms with her sister
she gets along well with her sister
……