Linda was busy when I went to see her yesterday． She for an exam．（ ）
A．will studyB．was studying
C．has studiedD．is studying
Why are you so late today？
Three buses went by without stopping while I at the bus stop．（ ）
A．am waitingB．waited
C．have waitedD．was waiting
I_____you here， but you didn't come．
I'm terribly sorry． I was so busy that I forgot．（ ）
A．would expectB．was expecting
C．am expectingD．have expected
I didn't see your father yesterday when I went to your house．
Oh， he strawberries on the farm．（ ）
A．picksB．picked
C．was pickingD．has picked
You look tired． What's wrong with you？
I stayed up late last night． I _______ my speech from eight o'clock to midnight．（ ）
A．practicedB．am practicing
C．was practicingD．has practiced
Did you hear the strange noise next door around 10o'clock last night？
No， I my favorite TV programme in my bedroom．（ ）
A．watchB．watched
C．was watchingD．am watching
When did the classroom have a power cut？
This morning，while we ________ a physics lesson．（ ）
A．have hadB．were having
C．are havingD．will have
I called you yesterday evening．But nobody answered．
Oh，sorry．Maybe I____in the bathroom at that time．（ ）
A．take a showerB．took a shower
C．was taking a shower
Why didn't you go to the speech yesterday afternoon，Tim？
I'm so sorry．But I ______ my homework．（ ）
A．have doneB．was doingC．will doD．am doing
Sun Hai his mother make dinner when his father got home from work．（ ）
A．was helpingB．helps
C．helpedD．is helping
The engineers____a new computer in our classroom the whole yesterday morning，so we had our classes in the school hall．（ ）
A．were fixingB．fixed
C．have fixedD．are fixing
Did you see a man in black pass by just now？
No，sir．I ______ my car．（ ）
A．washB．washed
C．am washingD．was washing
Oh， dear! A power（电源） cut!
Sorry， I didn't know you _________the washing machine．（ ）
A．usedB．are usingC．to useD．were using
Sandy，the glass is broken．How did that happen？
Sorry，Mum．I don't know．I outside．（ ）
A．playB．was playing
C．have playedD．am playing
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