【題目】There is no doubt that climate all over the world ______ greatly in recent years.

A. had changedB. is changing

C. changedD. has been changing

【答案】D

【解析】

考查時態(tài)。句意：毫無疑問，最近幾年全球氣候一直在劇烈變化。本句的時間狀語in recent years通常與現(xiàn)在完成時連用，表示一段時間以來一直發(fā)生的事情，ABC三項都不是現(xiàn)在完成時�，F(xiàn)在完成進行時強調(diào)從過去開始發(fā)生的事情一直延續(xù)到現(xiàn)在，與語境相符，故選D項。

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