（ ） She doesn’t hard at Art.
A. work B. works C. working
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?