二、单项填空（20分）
16. , I have never seen anyone who’s as capable as John.
A. As long as I have traveled B. Now that I have traveled so much
C. Much as I have traveled D. As I have traveled so much
17. If you get lost, stop , as this can thicker bush and more dangerous places.
A. crying; make B. heading; cause C. walking; result in D. advancing; lead to
