—Why didn't you go to play football with us yesterday afternoon?

—I           my mother with the housework then.

I saw some boy students          basketball when I passed the playground.

While I            down the street, the traffic accident happened.

Mr Brown         flowers at that moment．  

—Why didn't you answer my phone at 7:30 last night?

—Sorry, ______.

—Why are you so late? I've been here for almost an hour and a half.

— I'm terribly sorry. Just as I ________, Mr. Smith asked me to send an e-mail for him.

Mrs White _____ dinner when her son came home.

While my mother was sweeping the floor, I       TV on the sofa.

当妈妈在做饭时, 我正在看电视。

 my mother was cooking, I  TV.

—Did you hear anyone knock at the door just now?

—Sorry. I            to my friend on the phone.

—I shouted to you at the gate, but you didn't hear me.

—Really? I           a telephone call to my mother.

— Hey, are you listening to me?

— Oh, sorry. I ________________ about something else.

They (ride) along the road when it began to rain.

I _____ housework when my aunt came.

—Did you see a girl with an English book in her hand pass by just now?

—No, sir. I___________ a magazine.

—I called you last night, but you didn't answer.

—Sorry, Grace. I        I am A Singer when the phone rang.

— I watched the basketball match between China and America on TV last night. It was so exciting.

— What a pity! I _________ for my report at that time.

Mary ________dinner in the kitchen when you called her at 6:30 yesterday evening.

What the twins (do) then?

Susan and Lily________tomatoes and other vegetables on the farm this time yesterday.