—A talk on Chinese history ________ in our school next Tuesday. Are you interested in it?— Sounds good. Do we need to buy tickets?
She looked around, but the tall man was nowhere______.
The sun was shining brightly, ________ everything there ______ more beautiful.
—Now that you like the cell phone so much, why not carry it back? —Well, you know, I’m a student, and I can’t afford ________ mobile phone.
Loulan, once a small, wealthy commercial city, is believed by many people___________over gradually by sandstorms from AD 200 to AD 500.
The blind man thought___________necessary to pay back the help people gave him when it was sunny.