While I . TV, the doorbell.
TV, the doorbell. (watch/ring)​

mary used to eat junk food when she was a child but now she keeps fit and prefers healthy food.

10 years ago people used to pay only in cash, but today most people have credit cards.

seven years ago i used to have a motorbike, but now it belongs to my sister as i drive a car.

when he lived in paris, he used to eat frogs every weekend, but now he lives in india and he eats indian food every second day.

when her granddaughter was a kid she used to believe that snow was made of ice cream.

a. spends

b. do you look for something

c. have not

d. does not like, but i love it

e. bought. do you like them?

f. were working, when the second world was started

g. has come, is living, met, was learning 

mr adams doesn'n work on monda,does he?