Some plants are so sensitive ________ pollution that they can only survive in a perfectly clean environment.
举一反三
- Some plants are so sensitive ____ pollution that they can only survive in a perfectly clean environment. A: from B: against C: to D: with
- Some plants are so sensitive ___ population that they can only survive in a perfectly clean environment. A: with B: to C: from D: against
- Only by (create) __________ a clean environment can we truly encourage more tourists to come.
- Only<br/>by ______ a clean environment can we truly encourage more<br/>tourists to come. (create)
- Only by _____ a clean environment can we truly encourage more tourists to come. A: creating B: creates