You _____ be tired; you have been working for so long a time,but he _____ be tired; he has just begun to work.
--Hi, Tracy, you look tired. --I am tired. I__________ the living-room all day.
You should take the medicine after you read the __________.
Tom suggested that we __________such a meeting, but Jenny insisted that it _________of great importance.
--Hello, this is 77553861.
--Did Mary come to your birthday party? --No. I __________ her, but she was away on business.