My pen is missing I can’t find ____ anywhere.

Why do you look so upset—There are so many troublesome problems _____.

40.Thand you for ___so much trouble __ me with my geography.

— Who’s the woman standing over there? — A teacher and writer _____ to Joseph’s birthday [ ]

__ warm at night, I would fill the woodstove,then set my alarm clock for midnight so I could refill it.