Mary seldom smiles.She is usually too sad.Mary seldom smiles.She is usually too sad.1、为什么第一个不是be + seldom?2、为什么第二个不是She usually too sad.第二个是因为要be +

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Mary seldom smiles.She is usually too sad.Mary seldom smiles.She is usually too sad.1、为什么第一个不是be + seldom?2、为什么第二个不是She usually too sad.第二个是因为要be +

Mary seldom smiles.She is usually too sad.Mary seldom smiles.She is usually too sad.1、为什么第一个不是be + seldom?2、为什么第二个不是She usually too sad.第二个是因为要be +
Mary seldom smiles.She is usually too sad.
Mary seldom smiles.
She is usually too sad.
1、为什么第一个不是be + seldom?
2、为什么第二个不是She usually too sad.
第二个是因为要be +

Mary seldom smiles.She is usually too sad.Mary seldom smiles.She is usually too sad.1、为什么第一个不是be + seldom?2、为什么第二个不是She usually too sad.第二个是因为要be +
Smile 是动词,动词原型前不能用Be ,Sad是形容词,所以用Be加形容词

1。seldom是副词，句子的主干是mary smiles。smile是动词，前面当然不用加be动词。
2。句子的主干是she is sad。sad是形容词，前面要加be 动词。

Mary seldom smiles.She is usually too sad.Mary seldom smiles.She is usually too sad.1、为什么第一个不是be + seldom?2、为什么第二个不是She usually too sad.第二个是因为要be + Mary is a s girl.She seldom speaks. Smiles smiles smiles mary's simon's uncle seldom visits china.对seldom提问 mary seldom does exercise at school..否定句和疑问句 It's seldom ______ (snowman)in Shanghai. Let's make a million smiles.怎么翻译 Aunt mary's Come to Mary's Kate is Mary's like many lovers of book,()past a bookstore without stopping to look inside.A.seldom did Mary walk B.seldom Mary walkedC.seldom walked mary D.seldom were Mary walked知道要倒装,但是请详细说明每个选项的错误或者正确理由 Mary is SELDOM LATE FOR SCHOOL ,{ A:IS SHE B：ISN'T SHE When I met Mary in the street,she always___at me.A.smiled B.has smiledC.was smilingD.smiles Mary smiles 后面有四个选项目 A sweet B sweets C sweetly D sweetily 因该选哪个 mary and jim’s和mary’s and jim’s