一块平行四边形的面积是50平方厘米,和它等底等高的三角形的面积是________平方厘米.
—Howmanycomputers_____inyourclassroom?
—Therearetwo.
比一比,再组词。
隼(_______)鸵(______)喷(______)枚(______)筒(______)
集(_______)驼(______)愤(______)攻(______)简(______)
him,give,please,water,a,of,bottle
___________________________________________
Oneday,MrGreenaskedMrsGreen______(go)shoppingforhim.