Перефразируйте предложения, используя возвратные местоимения (by myself, by yourself etc.) 1) when i saw him, he was alone. 2) don’t go out alone. 3) i went to the cinema alone. 4) my sister lives alone. 5) many people live alone.

When I saw him, he was by himself
Don't go out by yourself
I went to the cinema by myself
My sister lives by herself
Many people live by themselves