buivanngaphuoclong 2/21/2024 2:00:33 PM

Question 13: Our country has large areas of                   beauty.

A. unharmed               B. undamaged             C. unspoilt                   D. uninjured

Question  14:  Scientists  and  engineers  have  invented   devices  to  remove                    from industrial wastes.

A. pollutions                B. pollute                    C. polluting                 D. pollutants

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