英语达人进 帮我做几个单选~~~ 顺便小小的解释一下
The man opened his eyes and moved his lips as if _____ that he had something to tell the doctor.
AsayingBhaving saidCto sayBto have said
---You've made great progress in your studies of English, haven't you?
---Yes, but much
Aremains to doB is remained to doC remains to be doneD is remained to be done