摘要：I need two ______ of water.（答案：glasses，glass表“玻璃杯”可数，“量词+of”结构）

1. There are three ______ (box) on the desk.（答案：boxes，s/x/ch/sh结尾加es）

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2. I need two ______ of water.（答案：glasses，glass表“玻璃杯”可数，“量词+of”结构）

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3. This is ______ (Lucy and Lily) room.（答案：Lucy and Lily’s，两人共同拥有，后一个名词加’s）

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4. The ______ (child) are playing football.（答案：children，不规则变化，child复数为children）

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5. She has some ______ (advice) for you.（答案：advice，不可数名词，无复数形式）

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6. There are many ______ (sheep) on the farm.（答案：sheep，单复数同形）

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7. The ______ (knife) are very sharp.（答案：knives，f/fe结尾变v加es）

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8. He bought two ______ (photo) yesterday.（答案：photos，o结尾无生命加s）

来源：Cici老师微课堂