When we were young, every evening my brother and I ___ stay at home waiting for my mother?

The new shop announced that the first to purchase goods on the opening day         get a big prize.

She is a quiet girl at school，but sometimes she _____ be very naughty.

---- I have taken someone else’s T-shirt by mistake. Is it Jane’s? ---- It _______ be hers. She seldom wears red.

---Who’s the woman in red ? Is it Mrs. White?---It          be her. She went to Beijing yesterday.