Could (not), or was/were able

My great grandfather was a very clever man. He [   ] to speak five languages.

I looked everywhere for my keys but I [   ] find them.

I looked very carefully but I [   ] see the church in the far distance.

At first they didn’t want to come but finally we [   ] to persuade them.

Laura had had an accident and [   ] walk very well.

Sue wasn’t at home when I phoned but I [   ] to speak to her on her mobile.

I looked very very  carefully and finally I [   ] to see the church in the far distance.

The first shop I tried had no apples but I [   ] to get some at the second shop.

My grandmother played the violin and [   ] also play the piano very well.

A girl fell into the river, but fortunately we [   ] to rescue her.

I had forgotten to charge my camera batteries so I [   ] take any photos of the sunset.