选择填空。
Mrs. Wilson is really ______ to us. [ ]
A.friendly
B.friend
C.friends
答案:A
已知四边形的四条边的长分别是m、n、p、q,且满足m2+n2+p2+q2=2mn+2pq.则这个四边形是( )
A.平行四边形
B.对角线互相垂直的四边形
C.平行四边形或对角线互相垂直的四边形
D.对角线相等的四边形
As is known, Russia's Black Sea resort of Sochi was ________ the 2014 Olympics on Wednesday.[ ]
A. awarded
B. rewarded
C. returned
D. given