This book_______ 10 units , _______ two revision units.
--- Can you tell me how many study groups there are in a class? --- Generally speaking, a class often ___ 8 study groups, each with 7 group members.
___ , he still put people’s life in the first place.
--- Did you go to her birthday party held the day before yesterday? --- I ____, but something unexpected happened at my home.
___ the fact that he found math boring, he was still good at it.
They say that ___ Chinese language is particularly difficult for ___ European.