— I was a volunteer for the 2008 Olympic games.
— ______. What a great experience we had!
A:So I am
B:So I was
C:So was I
D:So am I
下列划线词解释全都正确的一项是( )
默写26个字母的大小写。
____
若x为三角形中的最小内角,则函数y=sinx+cosx的值域是( )