The girl _______ a red sweater is mysister.

下列各句中，加点的成语使用恰当的一句是（ ）

______ is often the case with elder people, my grandma talked about my new hairstyle for at least 50 minutes nonstop.

The function of an advertisement is that it can __________customers to buy the kinds of goods.

Do you know ______ this i-pad belongs to —Let me see. Oh, it’s ______.