I can’t stop smoking, doctor.— For your health, I’m afraid you________.

Sam can play volleyball well.— So ______. [ ]

TV and computer are so popular these days.——Yes, they can ____ our eyes to the outside world.

Why does Mary look so sad? – Maybe the things _______ she saw made her think of her grandmother.

Listen! Kate is playing the piano in the next room. –It _______________be Kate. She has gone to Hangzhou to visit the Cross-sea Bridge.