Changing its meaning. Use the given word(s) if a 35. The langur population and its habitat is monitored by the Cat Ba Langur Conservation Project. → It is by 36. These animals are most active during the hours of twilight around dawn and dusk. → It is during 37. Jean picked up a wallet on the way home yesterday. -> It was a walllet that 38. In my opinion, you should not eat lukewarm food so often. > I don't think Put the words in the correct order to make a correct sentence. 39. Keywords: was/the/she/It/she/complained./because/was/unhappy/price/with/that -> Use the given words or phrases to make a complete sentence. 40. It/be/in/cave/they/have/ trap / 19 hours / before / rescue.