【題目】 –Where is Mother?

–She is in the kitchen. She ______ the housework all morning.

A. is doing B. was doing

C. has done D. has been doing

【答案】D

【解析】

試題分析：考查動(dòng)詞時(shí)態(tài)。句意表示母親一上午都在做家務(wù)，現(xiàn)在仍在廚房做，故應(yīng)用現(xiàn)在完成進(jìn)行時(shí)表示從過去至今一直在持續(xù)的動(dòng)作。故選D。關(guān)鍵詞是：all morning。

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