--Oh,theroomistoodirty,Tony!---Sorry,Mom.It            ...

問題詳情：

--Oh, the room is too dirty, Tony!

---Sorry, Mom. It              yesterday. I’ll do it right away.

A. didn’t clean      B. isn’t cleaned       C. was cleaned        D. wasn’t cleaned.

【回答】

D

知識點：動詞時態

題型：選擇題