L2 could and can for ability and possibility

Can you read this for me? I --- see without my glasses.

• can

• can't

• could

• couldn't

I --- never speak Spanish as well as my brother.

• can

• can't

• could

• couldn't

After 2 years in China, I --- speak Chinese. It's so difficult.

• can

• can't

• could

• couldn't

I hate I --- understand my French neighbors when I lived in Paris.

• can

• can't

• could

• couldn't

When he was 40, he --- speak six languages.

• can

• can't

• could

• couldn't

After six months of guitar practice, yesterday I --- finally play my favorite song.

• can

• can't

• could

• couldn't

Yesterday I lost my keys and I looked for them everywhere, but I --- find them.

• can

• can't

• could

• couldn't

They --- open the door and finally scaped the fire.

• can

• can't

• could

• couldn't

I --- go to the party. I have to study for my exams tomorrow.

• can

• can't

• could

• couldn't

I --- touch my toes when I was younger.

• can

• can't

• could

• couldn't