1. --- Have you seen ____ knife? I left it here this morning.
   --- Is it ____ white one? I think I saw it somewhere.
   A. a; the                       B. the; the                C. the; a                   D. a; a
2. What _____ good advice he gave us!
   A. a                       B. an                   C. the                  D. \
3. ____ is not gold that glitters. (prov.) (闪闪发光物,未必尽黄金。)
   A. All                            B. The whole                C. Everyone                 D. The entire