Can/can't/could/couldn't

I ____ lift this box - it's too heavy! Would you help me?

Julian ____ play excellent golf when he was only ten.

I searched for your house for ages. Luckily I ____ find it in the end.

John ____ play tennis really well. He's champion of his club.

She's seven years old, but she ___ read yet. Her parents are getting her extra lessons.

I ______ drive a car until I was 34. Then I moved to the countryside, so I had to learn..

We ____ get to the meeting on time yesterday, because the train was delayed by one hour.

My grandmother ____ use a computer until last month. Since then she's been taking lessons at the library.

I looked everywhere for my glasses but I ____ find them anywhere.

He's amazing, he _____ speak five languages, including Chinese.

When the car broke down I was really pleased because I ____ solve the problem.

______ you swim when you were 10?

James ____ speak Japanese when he lived in Japan, but he's forgotten most of it now.