4. acquired

3. Investigated

3. agree with

4. rejected/refused/declined/turned down

B. 1. convinced2. persuaded

C. 1. agreed on2. agree to

3. rejected

2. refused/declined

6. clarify　　 7. ambiguous　 8. recognizable　 9. curiosity　 10. investigated

10. When you read an English book, make a mark 　　　　　you come across a new word.

A. what　　　　　　　　　 B. where

C. as　　　　　　　　　　 D. which