— What were you doing ______ I knocked at the...

— What were you doing ______ I knocked at the door?

— I was sleeping.

A．unless　　　　　　　　 　 B．once

C．when 　　　　 　　　　　 D．while

九年级英语单项填空中等难度题查看答案及解析

— What were you doing ______ I knocked at the door?

— I was sleeping.

A. unless　　 B. once

C. when　　 D. while

九年级英语单项填空中等难度题查看答案及解析

Tom ______ an experiment when someone knocked at the door.

A. does B. did C. is doing D. was doing

九年级英语单项填空中等难度题查看答案及解析

Someone ______ at the door. Can you open it?

A. knocks                                    B. knocked

C. is knocking                                D. was knocking

九年级英语单项填空中等难度题查看答案及解析

Someone ________ at the door.Can you open it?

A. knocks　　 B. knocked　　 C. was knocking　　 D. is knocking

九年级英语单选题简单题查看答案及解析

一Did you hear someone knock at the door just now?

一Sorry. I 　　　　 to my friend on the phone.

A. was talking　　 B. talked　　 C. am talking

九年级英语单选题中等难度题查看答案及解析

--- Do you hear someone _____ on the door?　　 --- Yes. It is late at night. Who can _____ be?

A. knock; he　　 B. knock; it

C. knocking; he　　 D. knocking; it

九年级英语单项填空中等难度题查看答案及解析

——Paul, what were you doing at nine Last night?

——I 　　　　 a movie in the cinema with my friends.

A. was watching　　 B. watch　　 C. have watched　　 D. will watch

九年级英语单选题困难题查看答案及解析

-- Shirley, what were you doing at three o’clock yesterday?

-- I was sitting by the window, __________ to the music.

九年级英语单项填空中等难度题查看答案及解析

Julia was _______angry at what her husband was doing that she walked out and shut the door.

A.very B.too C.so D.such

九年级英语单选题困难题查看答案及解析