—Mum, I want_______ of these two dresses.—Sorry. You can only buy one of them.

 —　　　　  gloves are these? —Sorry. I don’t know. 

Miss Gao is our English teacher. She gives ____ a lot of help.

---Are Mr. and Mrs. Wang living alone in the house? ---Yes, they have three sons, but ______ of them live in their own houses.

I think _________ important to learn English well.