My parents_______ twenty years ago. They _____for twenty years.

Will people live on the moon— .

By _____ these old students, we hope ____ them good at looking after the younger students.

They are going to ________an advertisement in the papers for the position of the sales director.

12.—Most of my friends do the shopping online,—That’s really a good idea. Prices of goods _______ online can be lower than store prices.