unchangeable不可改变的
4. The constitution’s vague nature has given it the flexibility to be adapted when circumstances change.
A. imprecise B. apparent C. clear D. easy
比较：
The constitution’s vague nature has given it the flexibility to be adapted when circumstances change.
A. imprecise B. concise C. unpolished D. elementary
分析： 答案都是imprecise.
apparent –clear明白的，清楚的
easy容易的 (easy –comfortable舒服的 )
concise – brief简洁的，简明扼要的
unpolished未经润饰的
elementary初步的 (elementary – fundamental根本的，本质的)
5. Gambling is lawful in Nevada.
A. enjoyable B. irresistible C. legal D. profitable
比较：
Gambling is lawful in Nevada.
A. legal B. irresistible C. enjoyable D. profitable
分析： 答案都是legal.
lawful – legal合法的
enjoyable -- joyous –happy – pleasant愉快的，快乐的
irresistible不可抗拒的
profitable – beneficial 有益的；有用的
6. These are our motives for doing it.
A. reasons B. excuses C. answers D. replies
比较：
These are our motives for doing it
A. reasons B. arguments C. targets D. stimuli
分析：答案都是reasons.
motive – reason动机
excuse解释；理由
answer –reply回答，答复