( cho mik lời giải nhanh nhé ) V/ Circle the best word 1.      We should use /have public transport more. 2.      We shouldn’t hang/cut down trees. We should save them. 3.      We should take/love animals because they are real friends. 4.      Using coal in houses protects/pollutes air very much. 5.      We should turn on/turn off electrical equipment when we don’t use them. 6.      We shouldn’t pour/hold chemicals into our sinks because they pollute water. 7.      Using solar energy is clean/dirty and harmless. 8.      We should raise/plant more trees because we need them to breathe. We should use/give electric cars because they are clean