简答题Which of the following are massive engineering projects lunched to combat desertification?( ) A、Three North Shelter Forest System. B、Grain for Green Project C、Garbage sorting D、Panda breeding center.多选题Where does the conversation most probably take place? 7.4.mp3 A、In a hotel. B、In a restaurant. C、At a travel agency. D、At a flight ticket agency.多选题We should write down every word we hear when we take notes.简答题What are the causes of deforestation?( ) A、Agriculture. B、Planting trees. C、Building infrastructures. D、Illegal logging.多选题What makes the woman scared of diving? 7.5.mp3 A、Encountering dangerous fish. B、Being unable to swim fast in the sea. C、Having no idea what time it is in the sea. D、Being unable to go up to the surface again.