That piece of music sounds quitefamiliar. Who _____ the piano upstairs

“How long do you suppose it is _______ heleft for Japan” “No more than half a month.”

What is that building?— _____ the garden equipment is stored

It’s known to all that large quantities of TV andRadio programs in China were produced_________ people’s concern over edible oil last year.

My parents are ______ famous writers.