100天突破高考3500必备词汇(每日一页答案)

Key to Day-18.

1.in the 21st century

2. the graduation ceremony, was held

3. certain, hones t, certain of/about, honesty

4. make certain/sure, for certain/sure, certainly, uncertainty

5. a chain of meet the challenge of, challenging

6. chalk, two p ieces/sticks of chalk

7. champion,championship

8. a chance, take your cha nce, cheat, by chance, build up your character, a man of good character

9. change them for, change, changeable, check up 10. Network chat/Online chatting, cheap, free of charge, in the charge of, cheating, charged with