Past simple vs Past continuous

I saw an accident __________ I was waiting at the bus stop.

• when

• while

I was preparing when they ________(come)

• came

• was coming

• was caming

• come

What .............................. when you knocked on his door.

• did Peter do

• dose Peter doing

• were Peter doing

• was Perter doing

The sun ............................ when I ................................ this morning

• shone / got up

• was shining / got up

• was shining / were getting up

• were shining / got up

He fell down ...................... he was climbing a tree

• when

• while

...................... you called me last night, I was studying for the test

• when

• while

When my mom ................. home, my sister .....................

• came / was sleeping

• was coming / was sleeping

• came / slept

• was coming / slept

Last weekend Susan ...................... and .................... her leg.

• was falling / broke

• fell / was breaking

• was falling / was breaking

• fell / broke

You ..................... a new dress to the party last night.

• wore

• is wearing

• was wearing

• were wearing

We .................. some old photographs while we ...................our room.

• found / were tidying

• were finding / tidied

• found / tidied

• were finding / were tidying