1 . It seemed that our nursery rhymes ________ some magic because all the nights I sang them for my daughter, she would listen to them with keen pleasure.

A．must have had	B．should have had
C．could have had	D．need have had

2 . —Did Ann fail in English?
—She ________. Don't you notice that she looks depressed?

A．might	B．must
C．may have	D．could have