________ is the kindness of the nurse that the patient can never be ________ to her．

1. A.
   So, too thankful
2. B.
   Such, so thankful
3. C.
   So, that thankful
4. D.
   Such, too thankful

______is the kindness of the nurse that the patient can never be _____ to her．

A．So, too thankful                                         B．Such, so thankful

C．So, that thankful                                        D．Such, too thankful

. ______ is the kindness of the nurse that the patient can never be ______ to her.