If the Earth(be).......warmer, the sea level (rise)....... If the sea level (rise) ......, some countries (disappear)..... if we(reduce).....soil pollution, we (have)....enough food to eat If we (not have)...enough food , we (be)....hungry If we(be).....hungry,we (be)......tired
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8 tháng 4, 2017
trong Tiếng Anh lớp 6