21. Why not get the curtains washed in the laundry（洗衣店）?
---_________.
A. That’s a good idea. B. No problem.
C. I don’t think so. D. I am afraid not.
22. If you waste ______ time, it will be _____ difficult to make up for(弥补) it.
A. too much; too much B. too much; much too
C. much too; too much D. much too; too much
