— Whose pen is this? — Oh, it’s_____. I was looking for it everywhere.
I look forward to ___________ America next year with my family.
_________ the afternoon of next Friday, we _________ to plant trees in the mountain.
I can’t go to your party, because I have __________ homework to do today.
Mike’s mom is ill. He is ___________ her at home.
It’s unhealthy to sleep with all the windows ___________.