85.A：You _____(not be) at school last Friday.Where ____(be) you?____ (be) you ill?

85.A：You _____(not be) at school last Friday.Where ____(be) you?____ (be) you ill?
　B：No,I _____(be).But my mother ____(be).I ____(stay) at home and_____(look) after her.
A：I _____ (be) sorry _______ (hear) that.______(be) she better now?
这段对话中的I _____ (be) sorry _______ (hear) that.这个怎么填?是ing还是to be还是都可以
I _____ (be) sorry _______ (hear) that.这个怎么填？是ing还是to be还是都可以
I _____am ) sorry ____hearing/to hear___ (hear) that.