下列四个多边形：①等边三角形；②正方形；③正五边形；④正六边形．其中，既是轴对称图形又是中心对称图形的是（ ）
STUDY ENGLISH IN AMERICA
Country
Tina comes from ____.
Weekend Activity
Tina visits____ on Sundays.
Location
Tina's host family is in a ____ area.
TV Program
Tina always watches ____ in the evening.
Study Time
Stay for ____ and study English as Tina does!
老师夸小丽乐于助人，我要向她学习。 （ ）
