MrSmith found that gas from the pipe when he came back because we forgot to switch offBut at last we were lucky to escape

Why is the little boy crying there —Because he doesn’t know______.

I have called the station and they told me the next train for Da Lian _____ at 3:10

______ can make my mother change her mind. She is sucha person who never gives up easily.

MrBrown ______ his office an hour ago and he is still on his way home