HE ____ IN THIS SCHOOL BEFORE HE ____ FOR ENGLAND.A. TAUGHT/HAD LE...

79) - BO DE THI TRAC NGHIEM NGU PHAP TA ON THI 10
BO DE THI TRAC NGHIEM NGU PHAP TA ON THI 10
79) He ____ in this school before he ____ for England.A. taught/had left C. taught/has leftB. had taught/left D. has taught/left