10.The disappointed teacher informed him that he was making ____________ progress in his studies. (A) unbelievable (B) unsatisfactory (C) tremendous (D) satisfying

15.The rich man has a high standard of morality. He never ____________ other people. (A) has faith in (B) sets a good example to (C) takes advantage of (D) loses control of Ⅱ. 文法挑錯：其中有一個選項語法錯誤，請選出該錯誤選項。