EX3. Circle the mistake (A or B), then correct it.
Laura (was taking off)A her coat and (sat down)B.
While we (were)A on holiday, we (were spending)B most of our time sightseeing.
Paul (listened)A to his iPod, so he (didn’t hear)B the doorbell ring.
While we (were having)A a picnic, it (was starting)B to rain.
5. Helen was painting a picture (when)A her mum (was cooking)B\
Giups mk nhanh nha các cậu
Bài làm
1 . A -> took off
2. B - > spend
3 . A -> was listening
4 . B -> started
5 . A -> while