来自刘志亮的问题
被动语态专项练习Wecallmath"thelanguageofscience"Math_______________"theschooluniforms?
被动语态专项练习Wecallmath"thelanguageofscience"Math_______________"theschooluniforms?


被动语态专项练习Wecallmath"thelanguageofscience"Math_______________"theschooluniforms?
被动语态专项练习Wecallmath"thelanguageofscience"Math_______________"theschooluniforms?



填“iscalled”,math数学,专有名词,作主语时表单数,所以用is

