It was _______accident. A. a B. an C./
如果你想问他们经常做什么,你可以问: A. What do they often do? B. What are they doing? C. What can they do?
如果你想了解对方正在做什么,你可以问: A. What are you? B. Where are you? C. What are you doing?
如果你想和李先生通电话,你可以说: A. Hello. May I speak to Mr. Li? B. Where is Mr. Li, please? C. Who is Mr. Li?
打电话时如果想知道对方是谁,应该问: A. Who are you? B. Who’s that? C. Who’s this?
如果你想问别人星期一上什么课,你可以问: A. What do you do on Monday? B. What would you like on Monday? C. What do you have on Mondays?