Li Lei isn’t ____ Liu Ming. 

—Excuse me, Mr. Brown. ______ you speak Chinese?—Yes, butt only a little.

—Mr. Wang, must I come again to clean the window on Sunday morning?—No, you _____ . I have asked others to do it.

—Look at the sign! —Oh, I see.We _______ waste water.

(2013·湖南高考)He ________ sleep, although he tried to, when he got on such a hunt for an idea until he had caught it.