which lesson is ____ (difficult) in book 2? 用所给形容词或副词的适当形式填空

问题描述:

which lesson is ____ (difficult) in book 2? 用所给形容词或副词的适当形式填空

the most difficult
应用*
翻译为:在第2本书中哪一课最难.difficult前面加the,是不是same前面就不加the?