Only when _______ according to the directions strictly will the medicine work well.
His father told me that he __________ for the United States three days __________.
He made a mistake, but he corrected the situation __________ it got worse.
Iraq has __________ too many wars since 1990, making his people __________ a lot.
Many websites have been _______ to help people study foreign languages.
Most of the local people insist that the old temple _______ as it has a long history.