---When did they__________Beijing?---They ___________there at 5:00p.m.
—Must I hand it in today? —No,you ________.You can do it tomorrow. A.mustn’t B.can’t C.needn’t
Don’t drink the soup.It smells ________.
—What are the school rules? —We ________ arrive late for class.
—________ I finish my homework now? —No,you ________.Your work is over today.
下面哪个标语提醒我们“严禁停车”? A. B. C.