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IF WE GO ON LITTERING, THE ENVIRONMENT …….. SERIOU...
IF WE GO ON LITTERING, THE ENVIRONMENT …….. SERIOUSLY POLLUTED.A.BE...
KIEM TRA LAN 4
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5. If we go on littering, the environment …….. seriously polluted.A.become B. will become C.becoming D.to become
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5.
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KIEM TRA LAN 4