Principal White has been working in the school for about 20 years, all his energy to teaching and researching as well as the running of a healthy school.
When the poor old lady tried to ______ the cup on the shelf to have a drink, she ______.
Maria has written two novels, both of _____ have been made into television series.
Mary is ill today. If she ______ ill, she _______ absent from school.
Mary had promised to give me a ticket for tomorrow. She failed, ______.
The policeman came up to the house, whose door was open, _____ there for a while, and went in.