BY THE TIME H E ARRIVED , ALL HIS CLASSMATES ...A. LEFT B. HAD LEF...

32. - KIEM TRA 1 TIET SO 1
KIEM TRA 1 TIET SO 1

32. By the time h e arrived , all his classmates ...

A. left

B. had left

C. have left

D. are leaving

IV Rewite the sentences , using the given words : ( 1m )