—Whose is this blue sweater?—It ___ be Hong Tao’s. His is white. 

---Is Lingling’s grandmother cooking the meal?---No, she         。

－ I lent my bike to Li Lei. May I ____________ yours, Mary?－ Certainly. Here is the key.

What a nice coat! How much did you_____ for it?  It_____ me twenty yuan.

You seem ___________. What are you____________?