1.Zhang Hao often helps his mother___(clean)the house.
问题描述：
1.Zhang Hao often helps his mother___(clean)the house.
2.将这些频度副词根据频率由大到小排序：often,never,sometimes,usually ,hardly,always
3.这个书橱和那个一样.（用英语说）
答
1 clean或to clean
2 always usually often sometimes hardly never
3 This bookshelf is the same as that one.