—Sonia, is this your dictionary?—No, it’s not ______. Ask Alan, Maybe it belongs to ______.
—Why was Miss Read so angry with you this morning?—She asked me _______.
—It’s dangerous to swim here. Look at the sign!—Oh, I _______ it.
—Will you give me a hand? I have some trouble_______ the scientific problem.—Don't worry. I'll try my best to help you _______.
You’d better_______ your cigarette when you are in the wood.
—What will the weather be like tomorrow?—It _______ be rainy, cloudy or sunny. Who knows?