Past Simple/Past Continuous

We need another two.....of paint on the wall. I can still see the graffiti

This new....is excellent. Look at the high quality of these pictures

Luther is in the garden collecting....for our project on plants

I can't find the last piece of the ..... Maybe it's under the sofa

Did you know that the most used....in the world is'123456'?

I .             [lay, was laying]..on the beach when suddenly it ..               [started, was starting]. raining

I..              [was reading, read].a book when you..               [called, were calling].me at 4 o'clock yesterday.

The first time I ..             [saw, was seeing]..my boyfriend, he .              [danced, was dancing]..at a party

We..              [were having, had].lunch when the door opened

It was a sunny day. I..              [left, was leaving].home. Suddenly the postman..               [was knocking, knocked].on the door

...                   [Was Ben studying, Did Ben study] yesterday at 8 p.m.?