It’s about twenty _______(米)high.
It’s hot , ______ close the window .A. Don’t B. don’t C. not
---______ is it now ? ---Eight . A. How old B. What C. What time
Stand ______ , Liu Tao . A. down B. in C. up
---What ______ a pie ? ---Yes ,please . A.colour B. is C. about
Now open ______ book, Paul. A. you B .your C. I