250. Jack is a very stubborn(顽固的) person. I was unable to _____ him to do as I said. I want to ask you to have a word with him.
After the Arab states won independence, great emphasis was laid on expanding education, with girls as well as boys ______ to go to school.
Generally speaking, according to the directions, the drug has no side effect.
Only when your identity has been checked, ___________.
Great as Newton was, many of his ideas _______ today and are being modified by the work of scientists of our time.
Some passengers complain that it usually _________so long to fill in travel insurance documents.