John will start doing homework ______ . A. as soon as he finishes his lunch B. after he had finished his lunch C. when he finished his lunch D. before he finished his lunchĐoạn văn12/50John will start doing homework ______ .as soon as he finishes his lunch after he had finished his lunchwhen he finished his lunchbefore he finished his lunchGiải thíchChọn A