At our factory there are a few machines similarto _______ described in this magazine.

________ rapid economic developmentand political stability over the past three decades, but with them ________some social problems.

______children that failure is a normal part oflearning is the best way to get them perform well in school.

I don’t mind telling you what I know.— You _______. I’m not asking you for it.

Mark ______ a basketball game in the stadium that _______ 5000 people.