—I hear you have an experience in the Royal Air Force. Is that ture?—Yes. I ______ in the Royal Air Force for six years. A. served B had served C joined D have joined
Walking around, I found the city was full of people _________ for the New Year’s festival.
We are looking forward to _________ a chance to watch the opening ceremony of Shanghai World Expo.
There’s a man at the reception desk who seems angry. I think he means ________ trouble.
There is a(n) ________ of 200 yuan for the person who returns the lost necklace to its owner.
—Is Jack on duty today? —It________ be him. It’s his turn tomorrow.