Upon reaching an/a ______  age, children are encouraged, but not forced, to “leave the nest”.  

Everybody said it was an ideal marriage; no one had ever known ______ couple.

Mr. Lee is ______ to show up at the meeting.

Our government has made a consumer ___ policy. You can buy goods at low prices.

Her last book sold five million copies and we hope this one will be＿＿＿＿popular.