past progressive vs simple past

I dropped a cup while I .... the dishes

• washed

• am washing

• was washing

• washes

We ... a delicious dinner at a Mexican restaurant last night

• eat

• had eaten

• ate

• eaten

.... to class yesterday?

• do you go

• did you go

• are you go

• did you went

While Bob .... dinner, Ann ... through the door

• ate, came

• ate, was coming

• was eating, came

• ate, come

Sally .... dinner last night when someone .... on the door

• was eating, knocked

• eating, knocking

• ate, was knocking

• was eating, was knocking

I began to study at seven last night.

Fred .... at seven-thirty.

I ... when Fred ....

• came

  studied, came

• was coming

  was studying, came

• came

  was studying, came

• come

  studying, was coming

The children .... when their father came home

• play

• was playing

• played

• plays

While I .... last night, Fred .... to visit me.

• studied, drop by

• was studying, dropped by

• study, dropping by

• studied, dropped by

My roommate's parents ... him last night while we ... TV

• called, were watching

• called, are watching

• was calling, watched

• called watched

My mother called me around five. My husband came home a little after that.

When he ... home, I .... to my mother on the phone

• came, was talking

• came, were talking

• was coming, was talking

• came, talked