_________ my two sisters. And __________ my brother.

Two tickets to Guilin, please.–Only one ticket left. Would you like _______?

Listen! There is a knock on the door．Who _____ it be?—It must be Jack．Just now I sent for him．

He visited his grandparents ____ a sunny morning,[ ]

I like your pet dog very much. But I can’t find _______ in the pet shop. Where did you buy _______?