【題目】It seems that El Nio ____ some disasters in the world in the past few months.
A.has caused
B.is causing
C.will cause
D.caused

【答案】A
【解析】時間狀語in the past few months是指從現(xiàn)在算起"在過去的幾個月里"，和現(xiàn)在完成時態(tài)連用。句意：在過去的幾個月里厄爾尼諾暖流似乎在世界范圍內(nèi)導致了一些災難。

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