【題目】Great changes(take place) in my hometown since 1978.

【答案】have taken place
【解析】句意:自從1978年我們家鄉(xiāng)發(fā)生了巨大變化。take place“發(fā)生”相當于不及物動詞,無被動式;由時間狀語since 1978可推斷,句子使用一般現(xiàn)在時態(tài)。故填have taken place。
【句意】考查現(xiàn)在完成時。

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