I don’t know why he has been absent _______ class for so long.
We tried ________ the window, but it was still hot in the room.
The church ________ from the 18th century is under repair at present.
A special dance ________ horse dance becomes so hot that many famous people can't help copying that.
—Who is the girl over there?—Isn't that the secretary you want ________ the article?
As the immune system weakens, it loses the ability ________ illnesses.