He had breakfast about 7: 30 the morning. ( )A.at; inB.on; inC.at; on

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【题目】He had breakfast ________ about 7: 30 ________ the morning. (　　)

A.at; inB.on; inC.at; on

【答案】A

【解析】

句意：他早上七点半左右吃早饭。在点钟前用介词at，在上午用介词in。故选A。