1. The children seem to be totally ___________of working quietly by themselves. A. unable B. impossible C. incapable D. not able to 2. Suddenly she recognized the _____________of the situation that made her laugh. A. wonder B. pleasure C. understanding D. humour 3. He is a ___________person because he is always friendly with everyone. A. helpful B. good-natured C. honest D. quick-witted 4. If you want to get a good result in every work, you should have a _____________ . A. loyalty B. sympathy C. constancy D. unselfishness 5. A good marriage is based on _______________ . A. trust B. loyalty C. secret D. a& b are correct