The man stopped from time to time_______whether he was being followed.
Who do you think _____ for the failure of their marriage?
Mr Smith gave a notebook away to me. That’s ______ I need badly.
He promised to come early, but he didn’t _____ until 10 p.m.
----Would you please be so kind as to close the window? -----______.
Some people who don’t like to talk much are not necessarily shy; they _____ just be quiet people.