badly,ban,bare,barely,bark,base,bear,beg,behave,bend,beneath,benefit,bet,betray,beyond,bilingual,bind,birth,bite,bitter,blame,bleed,blossom,blow,boast
Lesson1
badly,ban,bare,barely,bark 5
Lesson2
base,bear,beg,behave,bend 10
Lesson3
beneath,benefit,bet,betray,beyond 15
Lesson4
bilingual,bind,birth,bite,bitter 20
Lesson5
blame,bleed,blossom,blow,boast 25