WHAT DOES THE WORD “IT” IN THE LAST SENTENCE REFER TO

30. What does the word “it” in the last sentence refer to?A. the polluted air B. the burning materialC. the health problems D. the plant and animalIV.Đọc kỹ đoạn văn sau rồi chọn phương án (A,B,C hoặc D) để hoàn thành cácchỗ trống từ 31 đến 35.Among the festivals celebrated (31)…….some of Asian people is the Moon Cake Festival,also (32)……. as the Mid- August Festival. Large numbers of small round moon cakes are (33)…….on this day, and children enjoy (34)……colorful paper lanterns come in all shapes; themore popular ones are shaped like fish, rabbits and butterflies. According to them, the moonshines brightest at the night of the Moon Cake Festival. As the moon rises, tables are (35)……outside the house and women make offerings of fruit anf moon cakes to the Moon Goddess.