1. We shall appreciate ____ from you soon.
A. being heard B. hearing C. to hear D. having been heard
【答案】B.appreciate+doing：“感谢，欣赏”。此处hear from sb：从……收到来信，应该用主动语态，后面的sb.是hear from的宾语，故A，C和D项不对。
2. Don't risk ___ the job which so many people want.
A. losing B. to lose C. lost D. your life to lose
【答案】A.risk后面接doing形式，意为：冒险做某事。
3. The scientist didn't mind_____ and went on with his investigation.
A. laughing at B. to be laughed at
C. being laughed at D. laughed at
【答案】C mind doing sth.“介意”是固定搭配；而此处科学家是被嘲笑的对象，是“介意被嘲笑”，所以选被动式C项being laughed at。
4. John suggested ____ anything about it until they found out more facts.
A. not to say B. saying not C. to say not D. not saying
【答案】D suggest后面只能用 doing，不能用to do，否定副词not的位置应该在doing之前。
5. I really appreciate ________ to relax with you on this nice island.
A. to have had time B. having time
C. to have time D. to having time
【答案】B.appreciate doing
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