----- Nội dung dịch tự động từ ảnh ----- Part 2. Combine the sentences in each pair into a nem sentence that shows a causeieffect rela worth in brackats.( LOpt) Many rivers and lakes are poisoned. Factories produce waste and pour it into rivers and lakes. ( We can't see the stan at night. There is too much light pollution. (due to) 3. Plastic bags are a major source of waste We should not throw plastic bags everywhere (so). 4 Houscholds dump wate into the river. It is pelluted. ( so) The food is contaminated. People's health is poor. (reults in) 6 Factories telease fumes. The air breathe gets polluted. (due to) form (+)s + had + V-ed (pp)/ VisQT +0. OS + had +nat + V-ed (pp)y Vingr +0. () Had + 8+V- ed (ppy Vingr +0.? eg We had lived in Hue before 1975. Afier the children had finished their homework, they went to bed - Before the children went to bed, they had finished their homework *Cich đùng - Diễu tả một hành động xảy ra và đã hoàn thành trong quả khử. (- Trang cầu có hai hành đồng thì hảnh động xảy na mớc dùng ở quả khế hoàn thánh cn thi qui khá đơn ) 1 The train (start) By the time he left the house, the house ( collapse) 1. The film already (begin) 4. I (find) my pen after I (buy ) a new one. before we amived at the station. - when we got to the cinema