56 （）

This passage mainly talks about __________ .

• A、the tools made by "Flores Human" 

• B、the language used by "Flores Human"

• C、the evolution of "Flores Human" 

• D、the major surprising findings about "Flores Human"

Henry will not be able to attend the meeting tonight because__________

• A、he must to teach a class

• B、he will be teaching a class

• C、he will teach a class

• D、he will have teaching a class