Complete the sentences with the correct form of can, could, or be able to
1. It's so amazing. He is able to speak five languages.
2. I looked everywhere for my glasses but I couldn't find them anywhere.
3. James could speak Japanese when he lived in Japan, but he's forgotten most of it now.
4. I have to go to a business dinner tomorrow night so I cann't come to the party. I am very sorry.
5. This telephone is terrible. I can't hear you at all.