— Are you content with her lecture?

— Nowhere near that. It         .

A．may have been good

B．couldn’t have been worse

C．can’t be better

D．must be better

When I was young, I             have so much time,  but these days I             in school all day.             [ ]

A. use to, stay                      

B. used to, stayed            

C. used to, stay                    

D. use to, stayed