题目内容
Some experts advise that steps ________ to protect the river at once, otherwise it's dangerous for people to drink the water.
- A.being taken
- B.be taken
- C.were taken
- D.had been taken
B
解析:
advise表"建议,劝告",后接宾语从句时从句谓语动词应用"should+动词原形"形式,表示的是虚拟语气,其中should还可省略。steps和take之间是被动关系,因此正确答案为B。
解析:
advise表"建议,劝告",后接宾语从句时从句谓语动词应用"should+动词原形"形式,表示的是虚拟语气,其中should还可省略。steps和take之间是被动关系,因此正确答案为B。
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