500,400,319,255,( )
A.206 B.212 C.216 D.224
参考答案:A
Frank,you look worried.Anything wrong?
Well,I ______a test and I’m waiting for the result.
A.will take
B.took
C.am taking
D.take
奖励固定献血者()。
A.送感谢信
B.小纪念品
C.少量钱或物