——Why is the classroom so dirty?
——Sorry, Sir. It _____ yesterday. We forgot to do it.
A．doesn’t cleanB．didn’t cleanC．isn’t cleanedD．wasn’t cleaned
D
根據(jù)句意，本題應(yīng)用被動語態(tài)，即“教室被打掃”，而時間是yesterday，故用一般過去時的被動語態(tài)，選D。
練習冊系列答案
相關(guān)習題

科目：初中英語 來源：不詳 題型：單選題

－Why not go to see the dolphin show with me?
－Because I _______ it.
A．sawB．will seeC．seeD．have seen

查看答案和解析>>

科目：初中英語 來源：不詳 題型：單選題

—— What’s she doing for vacation?
——She’s _____ Beijing.
A．visitingB．visitsC．visitingD．is visiting

查看答案和解析>>

科目：初中英語 來源：不詳 題型：單選題

---Where_____ you _____  these days? I haven’t seen you long.
---To Britain. I left for London two months ago and returned last week .
A．do, goB．will, goC．have, goneD．have, been

查看答案和解析>>

科目：初中英語 來源：不詳 題型：單選題

We don’t know If it _____. If it_____, we won’t go out for a walk.
A．rains; will rain B．rains; rains
C．will rain; will rain D．will rain; rains

查看答案和解析>>

科目：初中英語 來源：不詳 題型：單選題

--When did you become a volunteer for the elderly?
-- Two years ago. I ______ this group since then.
A．joinedB．took part inC．have joinedD．have been in

查看答案和解析>>

科目：初中英語 來源：不詳 題型：單選題

I must return the book to the library. I _____ it for one week.
A．keepB．borrowedC．have keptD．have lent

查看答案和解析>>

科目：初中英語 來源：不詳 題型：單選題

The telephone rang when we            dinner.
A．hadB．haveC．a(chǎn)re havingD．were having

查看答案和解析>>

科目：初中英語 來源：不詳 題型：單選題

The school day ______ at half past seven every morning.
A．is beginB．beginsC．is beginningD．begin

查看答案和解析>>

同步練習冊答案