Have you seen ______ pen? I left it here this morning.Is it ____ black one? I think I saw it somewhere.
She ________ speaking in front of many people because she is so shy.
—Must we keep the window _______ all the time? —No, you don’t have to.
We _______ play on this road. There is too much traffic.
The old man was _______ sad _______ say a word when he heard the bad news.
—Why do you like living in the countryside? —Because there’s _______ noise and _______ cars there.