One way to understand thousands of new words in gain _____good knowledge of basic word formation.
I remember _____ word he said that day.
One of the students hasn’t prepared _____ lessons very well.
. His attitude to us is _____ of a comrade.
. He was ill. _____ is why he didn’t attend the meeting.
. —Shall I give you a ride as you live so far away?—Thank you. _______.