The managing director of this department took the ______ for the accident, although it was not really his fault.

He is an old doctor with a lot of ________. But he has never travelled by air before.Taking a plane was quite ________ experience for him this time.

I have to reschedule the appointment with you since there is a ______ in my arrangement. 

They used to make ________ to meet and have a party at the end of a month.

Biology is ____