词形变化: 1. straight 2. trouble 3. far 4. distant 5. direction 6. cross 7. thank 8.

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）______

试题答案

答案：straight; troublesome; farther/further; distance; direct; across; thankful; right