He usually watches TV______ Saturday evening.A. on B. in C. at
【原创】When the students saw their teacher________into the classroom,they stopped________at once.
【原创】--- Excuse me, could you tell me the way to Beijing University? --- _______
【原创】Is there _______in the newspaper today?
【原创】Not only you but also she ______ been to the Great Wall.
【原创】--Must we finish the work now? -- .You can do it after lunch.