THEY HAVEN’T KEPT IN TOUCH WITH EACH OTHER ……….. A/ FOR 2 YEARS B/...

16- - DE THI HKI THAI NGUYEN
DE THI HKI THAI NGUYEN

16-They haven’t kept in touch with each other ………..

a/ for 2 years b/ 2 years ago c/ since 2 years d/ in 2 years