It was foolish of him to his notes during that important test, and as a result, he got punished.
The reason ___he didn’t come was ____he was injured.
Mother shut the window ______ she might keep the insects out.
Mr. Herpin is one of the foreign experts who ___in China.
Anyone can borrow books from this library _______ he keeps them clean and returns them in time.
So fast _____that it is difficult for us to imagine its speed.