Some 1,000 new words or usages join the English language each year. Some go into the dictionary. Others _______ from use.
It is the experience he had as a boy ______ has formed his present personality.
What the remote areas need most _______ education to children and what the children need ________ good textbooks at the moment.
---- What should I do with this passage? ---- ______ the main idea of each paragraph.
. We _______ have proved great adventures, but we have done the greatest march ever made in the past ten years.
All the people in the nation can remember exactly how many years ago _______ the civil war broke out.