The book __________ ten units, two revisions
Chang’e-3 made China become the third nation _____ an unmanned spacecraft on the moon.
— Could you do me a favor to take this book to John?— _____
By the time the storm ended, more than 200 people in that area _____.
The police ________ the prisoner to see if he had a gun.
About two hundred people are working in his company now,most of________ were once out of work.