Mr.Verder never thought that he would become a member of the board of directors because of his_____ origin.

• A、humble

• B、previous

• C、critical

• D、false

What’s the reason for twins to be at a disadvantage in their intellectual development?

• A、They can only understand their own private language

• B、They communicate with outsiders less than non-twins.

• C、There is little stimulation for them.

• D、Adults don’t like to talk with them.

60（）