1. If/ we/ replace/ ordinary bulbs/ instead/ energy_saving bulbs/ we/ save/ money (Thêm từ )
2. Viết thành đoạn bài sau:
Good afternoon Im ba and today I am going to tell you how to reuse paper.
(1) Most/ us/ produce/ too/ much paper/ you/ reuse paper by.
(2) Have/ a separate waste bas ket/ waste paper.
(3) Keep/ sheets/ with/ single printed paper/ drayting.
(4) If/ you/ follow/ these simple ruler/ reuse paper/ you/ save/ money.
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Sinh Học lớp 12
