He looked quite healthy though he was .
A.in seventy B.in his seventies C.at seventies D.at the age of seventy
China is ________ larger than the United States.
A. one six B. one sixths
C. one sixth D. one sixes
Shortly after the accident, two police were sent to the post to keep order.
A.dozen of B.dozens C.dozen D.dozens of
The hero of the story is an artist in his .
A.thirtieth B.thirty C.thirtys D.thirties
cave that George has discovered in his life time is near the Alps.
A.The hundredth B.The hundred
C.Hundredth D.A hundredth
It is not rare in that people fifties are going to university for further education.
A.90s; the B.the 90s; / C.90s; their D.the 90s; their
