My sister and I created our own language.
The energetic dog furiously played in the snow.
I was annoyed when people interfered with our game.
We can become involved in our community.
I sat down with my mom attempting to understand my English homework.
Chores go more quickly if you cooperate.
Also, your second sentence doesn't make sense.
It should be changed to “he had not met many new people, because he was too timid”
