His bike is broken. He asked      if I would like to share         with him. 

---____ skirt is blue.____ is red. Which of them do you prefer?---______ is OK. I like their styles.

--- Did your classmates have a good time in the Disneyland last weekend?---Yes. They enjoyed _________ very much.

—Why don't you eat more, Lily?—Sorry, mum. I can hardly eat _________. I am not feeling well today.

The temperature now is much higher than______of 100 years ago because of more and more greenhouse gas.

China is larger than ________ country in Africa.

There’s some litter on the floor. Please ______.

—Where are the books?—_______ in the bookcase. Do you need _______ now?

—Is the blue ruler _______? —No. _______ ruler is red.

---Which basketball player do you like best, Kobe, James or Jordan?---________ of them. Jeremy Lin is my favourtite.

– My bike is missing. I can’t find it anywhere.– I’m afraid you have to buy        .

____ you ____ your brother can join us. We want one of you.

---Whose book is this? There is no name on it.---Let me see. Oh, it’s          . I lost it a few days ago. 

—I don’t think it very expensive to buy a family computer here.—Really? I’ll buy _____ next week.

I have two books. One is for you, ________  is for her.

Where was Daly __________ Linda was looking for him?

- Doctor, how are the twins going?- Don't worry. _______of them needs_______.

We carefully compared the result of the first experiment with_______ of the second one.

Is there ________ wrong with your TV?

These postcards are ________.