I like these English songs and they ________ many times on the radio.


  1. A.
    taught
  2. B.
    have taught
  3. C.
    are taught
  4. D.
    have been taught
D
解析：
考查動(dòng)詞的時(shí)態(tài)、語(yǔ)態(tài)。they指代these English songs，且和teach之間有邏輯上的動(dòng)賓關(guān)系，故需使用被動(dòng)語(yǔ)態(tài)，先排除A、B項(xiàng)。再根據(jù)many times等信息可知此處表示過(guò)去發(fā)生的動(dòng)作對(duì)現(xiàn)在產(chǎn)生的影響，故選D。
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