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S: I’m sorry. Professor Johnson is not here at the moment. This is his assistant, Sally.  _____52_____?

Why does the author think some people should say “sorry” to Peter?

• A、They refused to help him.

• B、They considered him hopeless.

• C、They looked down on his parents.

• D、They made him give up his friends.

What can be learnt from paragraph 1?

• A、The centre opens all week round.

• B、Doctors and nurses work six hours a day.

• C、Appointments are not accepted in the afternoon.

• D、A same-day appointment may not be with the usual doctor.