— I did really well in the examination, Li Ke.

— I did ______. I got full mark.[ ]

A. no less  

B. no worse  

C. not worse     

D. not less

— Will you be able to come and help us clean the room? 

— ______, but I'm doing my homework. [ ]

A. I'd love to

B. I hope not

C. I do care

D. I'm afraid not