Question

【题目】I think ____necessary for us _____the birds.

A. it , protect B. its, to protect

C. it’s , protecting D. it , to protect

Answer 1

【答案】D

【解析】句意：我认为对于我们来说保护鸟类是有必要的。此题考查固定句式sb thinks it +形容词+for sb to do sth某人认为做某事怎么样。根据句意，应选D。