：in the last three years,they ____ three major concerts.A ha

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：in the last three years,they ____ three major concerts.A have had B had had
选哪个好呢现在完成时和过去完成时区别容易懂的
说说为什么把

针对本道题...in the last three years最近三年..到现在为止..应该用现在完成时..所以选A...
至于现在完成时和过去完成时区别 ..过去完成时表示的是过去一个动作的过去..也就是说前提有一个过去式的动词在前文提到过..比如说..
我去年去过中国..之前我去过中国三次..
I gone to china last year .i had had been there for there times before then .

：in the last three years,they ____ three major concerts.A ha a hit (1)“they've had three major concerts and made a hit CD they've had three major concerts and made a hit cd ____ the three major drinks in the last three years和in the past three years的区别 they __this estimate ___the figures for the last three years The park has changed greatly in the last three years. 英语翻译My life has changed a lot in the last three years.I used Mr Black _______(write) three books in the last three years In the past three years In the past three years ,he ____ very hard at maths. A.works She has worked in the ____ for three years.A.toy store B.toy