The biggest challenge weall face is to prevent further environmental disasters. We ________ take action before it is too late.
- A.can
- B.must
- C.may
- D.might
正确答案及解析
正确答案
解析
句意：我们面临的最大挑战是防止进一步的环境灾难。我们必须采取行动，否则就太晚了。
考查情态动词。can能，会；must必须；may可能；might可能。根据“The biggest challengewe all face is to prevent further environmental disasters.”可知，问题比较严重，所以必须采取行动。故选B。
包含此试题的试卷
你可能感兴趣的试题
The biggest challenge weall face is to prevent further environmental disasters. We ________ take action before it is too late.
-
- A.can
- B.must
- C.may
- D.might
- 查看答案
Listen up, guys!Everyone ________ wear a mask. Go and buy one if you don’t have one.
-
- A.can’t
- B.can
- C.mustn’t
- D.must
- 查看答案
—Must I return this book before Friday, Sir?
—No, you ________,dear. You can keep it for two weeks.
-
- A.can’t
- B.shouldn’t
- C.mustn’t
- D.needn’t
- 查看答案
You’d better take an umbrella when you go out, because it ________rain.
-
- A.must
- B.should
- C.might
- D.need
- 查看答案
The man _______ be a doctor in this hospital, but I’m not sure.
-
- A.must
- B.would
- C.can
- D.might
- 查看答案