听下面一段独白，回答以下小题。
【小题1】When can most children learn how to use the computer?

A．At the age of 2.

B．At the age of 3.5.

C．In Grade3 or 4.

【小题2】How did Judy’s son know the classification?

A．On his own.

B．Under Judy’s guidance.

C．With the help of the software.

【小题3】Why is it necessary for children to learn the computer at home?

A．They can avoid being at a disadvantage.

B．They can get online help from the teachers.

C．They’ll leave good impressions on their teachers.