—I'd like to go camping with you, but I have meeting _______.—If you don't go, ______.
—Look! The line of people is ______. —Bad luck. I don’t think we can get any tickets.
—Where is your uncle? —He _____ to South Africa on business. He has ______ there twice.
—There _______ a factory here, but now it has changed into a big supermarket. — You are so lucky to live here.
—The sick monkey to the animal centre tomorrow morning. — I hope it will be better soon.
—We should try our best to realize our ______. —Yes, I think so, wish you good luck!