—It’ssocoldtoday.ButJennyiswearingamini-skirt.—Really?

問題詳情：

—It’s so cold today. But Jenny is wearing a mini-skirt.

—Really?_______ necessary that we wear warm clothes on cold days, or we may catch a cold.

is        ’s     ’s      

【回答】

C

知識點：指示代詞

題型：選擇題