Fishes’ structural and physiological adaptations for life at extremes are still waiting for ______.
举一反三
- We (wait )for an hour and he still hasn't turned up(出现） A: wait B: are waiting C: have been waiting D: is waiting
- After the flood, life was ( ) difficult for the farmers in this area. A: extreme B: extremes C: more extreme D: extremely
- I for an hour, but he still hasn’t turned up. A: have been waiting B: waited C: wait D: am waiting
- People often ask the specialist on fishes regarding its （）. A: size B: life span C: age D: variety
- Are you still here?You were here half an hour ago.Who（）for? A: were you waiting B: are you waiting C: do you wait