Question

---Where does John live?
---He lives on ______ floor but he doesn’t use a lift to go up and down.

A．nine

B．the ninth

C．the nineth

D．a ninth

Answer 1

B

考查序數詞。句意：他住在第九層樓，但是他不用電梯上上下下。英語中表示在幾樓用序數詞表示，選項C結構有誤，故選B。