M R TUAN ……….SMOKE, BUT NOW HE DOES NOTA. USE TO B. USING TO C. USE...

9. - KIEM TRA 8BAM SAT RAT HAY
KIEM TRA 8BAM SAT RAT HAY
9. M r Tuan ……….smoke, but now he does nota. use to b. using to c. used to d. uses to