WHEN HE WENT HOME, HE ….. BECAUSE HIS WIFE WERE BUSY.A. WAS COOKIN...

99. - 600 CAU TRAC NGHIEM TIENG ANH
600 CAU TRAC NGHIEM TIENG ANH
99. When he went home, he ….. because his wife were busy.a. was cooking b. had cooked c. cooked d. was cooking