Qua khu tiep dien va Qua khu don

Tom was paiting the garage while I........in the garden

• was working

• worked

While She.......across the road, she fell and twisted her ankle

• ran

• was running

My brother fell while he......his bicycle and hurt himself

• rode

• was riding

I am sure. I....her four years ago

• saw

• was seeing

We told that the workers......an old bridge at that time

• repaired

• were repairing

Janet ..... some washing this time yesterday

• did

• was doing

She....her lessons from 7 to 9 last night

• did

• was doing

I called on her yesterday, she....a meal at the time

• cooked

• was cooking

How long ago.....Catherine?

• did you see

• were you seeing

It.....a year ago

• happened

• was happening