Let’s ______ the students into three groups and ______ boys from girls; in this way each group will have a _______ room to live in.
Jack,it’s too hot here.______ I open the window?
_____ he promised that he wouldn’t be late,he didn’t arrive until the end of the party
Since the new speed limits ______,the number of accidents in the area has fallen strikingly.
When Kerry and Sam met again two years later,each was pleased to see ____.
Tony couldn’t remember ______he had turned off the computer before he left the office.