一、单项选择题：（共20分）
21. —What is the secret _____ English study?
—______reading lots of English articles, you can improve it a lot.
A. with, About B. to, About C. with, By D. to, By
22. Anyone should be ______ and wait for the traffic lights to turn green before getting ready to cross a road.
A. smart B. patient C. talented D. similar
23.I think _____ grammar is a good way ____ a language .
A. study ; to learn B. studying ; learning
C. studying ; to learn D. to study ; learning
24. David said that the glass was broken and warned me ______ it .
A. don’t touch B. to not touch C. not to touch D. no touching
