21.____ with Japanese provocative(煽动、挑衅的)activities aimed at splitting Diaoyu Island from the motherland, China, we will not sit by and do nothing.
A. Face B. Faced C. Facing D. To face
22. ---Did you reach the top of the mountain?
---Yes. Even I myself didn't believe I could make ___.
A. that B. it C. one D. any
23. We bought the house for its _____. It is very near the shop where I work.
A. characteristic B. value C. convenience D. construction
