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• A、coming
  

• B、sitting  
  

• C、waiting 
  

• D、working

 你是Lucy，写一封给老同学Allen的邀请信，邀请他参加下个星期日下午4点(12月23日)的校友聚会。希望Allen尽快回信接受邀请，以便他们及时做好安排。

How did Binet decide which task to include on his first test?

• A、He first worked out thirty tasks for mentally deficient children．

• B、.He first gave all the tasks to many children both younger and older．

• C、He first gave the tasks to many children he thought appropriate．
  

• D、He first gave some of the tasks tO different groups of children．