污染是我们面临的最严重的挑战之一。(challenge) Pollution is one of the most serious _____ we face.
举一反三
- 2.污染是我们面临的最严重的挑战之一。(challenge)
- 污染是我们面临的最严重的挑战之一。
- 地球上人口飞速增长是人类面临的重大问题之一。 A: That the population on the earth is increasing rapidly is one of the serious problems that mankind faces. B: What the population on the earth is increasing slowly is one of the serious problems that mankind faces. C: What the population on the earth is increasing rapidly is one of the serious problem that mankind to face.
- (Face) _______ with the serious challenge of traffic jams, the local government began to deal with the problem seriously.
- We can only make a complaint face to face. A: 正确 B: 错误