America is a young country, but it has been a spoiled country for such a long time.
举一反三
- Never before ______ as united as it is today. A: our country has been B: has our country been C: has been our country D: have our country been
- , the country has been improving steadily.
- Our country has enjoyed a long period of peace and __________.
- How long did Korean take a time to be developed country?
- He has been an ______ (拍卖师) for a long time.