Past perfect and past perfect continuous

Before I came to Northen Europe I ________snow!

• had never seen

• had never been seeing

When police were investigating the road accident, they discovered that the driver ______2 road accidents before.

• had been involved in

• had been being involved in

When we ______the tour of the city, we decided to go and eat in a restaurant.

• had done

• had been doing

When I got home, I realized that while I ________someone had stolen my wallet!

• had walked

• had been walking

The service at the restaurant was very slow. I _______all of my meal before my friend's meals arrived!

• had already eaten

• had already been eating

We______for nearly 100 kilometers before we finally found a service station where we could have a rest.

• had driven

• had been driving

I ______the idea of going to fitness centre, but when I went to one for the first time last week it was really pretty fun.

• had always hated

• had always been hating

When we watched the film Godfather last night. We ______the film about 3 times before, but we watched it again because John_______it!

• had seen- had never seen

• had been seeing-had never been seeing

Ann ___________ (return) the books to the library immediately after she ______________ (read) them.

• returns-reads

• had returned- read

• returned- read

• returned-had read

The fire _________________ (break out) after Sam ______________ (fall) asleep.

• broke out- had fallen

• breaks out-falls

• had broken out- fell

• broke out-had fallen