The young pigeons which I bought ________ last month are able to fly ________ now．A.cheap；highB.cheaply；highlyC.cheap；highlyD.cheaply；high
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A解析① cheap（adj．=low in price便宜／adv．=at a very low price 在低价的情况下）；high（adv．=to or at a high level in position，movements or sound，+ly =very／very／well） ②形容词与副词同形的单词有：fast，slow，fair，cheap，hard，high，straight，wide，deep等，注意意义的区别，特别注意加-ly后的词意。