He used to in the morning, but now he is used to at night.
Put away your school things.Your stationery mustcarefully.
A boy _______ Tom _________ by a car yesterday.
-- So far, how long _______ you __________ China? -- For one year.
It was _________ difficult work ________ nobody can do it.
-- _____________did your uncle leave his hometown ? --He ____________ for nearly twenty years.