镀锌钢板镀锌层厚度:非常简单

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1.He goes to school by bus.(对by bus提问)
______ ______ ______he goto school?
2.There are fifty books on the desk.(对fifty提问)
______ ______ ______ are there on the desk?
3.Ann has bread and meat for lunch.(对bread and meat提问)
______ ______ Ann ______ for lunch?