形容词与副词及其比较级与最高级
From his ________ voice on the phone I know everything is going under way

词形变化：

1. straight（副词）______    2. trouble（形容词）______

3. far（比较级）______ 　　  4. distant（名词）______

5. direction（动词）______   6. cross（介词）______

7. thank（形容词）______     8. left（反义词）______

形容词与副词及其比较级与最高级

 From his ________ voice on the phone I know everything is going under way

  A) satisfactory      B) satisfying          C) satisfied           D) satisfactory