LAST YEAR, HOA AND LAN USED TO……….CAMPING IN THE PARK. A....

3. - KIEM TRA TA 68 BAI SO 2 HKI
KIEM TRA TA 68 BAI SO 2 HKI
3. Last year, Hoa and Lan used to……….camping in the park. A. go B. went C. goes D. going