Complete the sentences with reflexive pronouns (by myself, by yourself, etc.)

Darren went sailing alone. Darren went sailing by himself.

1. Kids shouldn't  go out alone.
   They must not go out
   [ ]
2. When I saw granny, she was alone.
   When I saw granny, she was
   [ ].
3. I went to the cinema alone.
   I went to the cinema
   [ ].
4. My friend Fred lives alone.
   He lives
   [ ].
5. Tom and I built this house.
   We built this house
   [ ].