1蓝宝书P52 At the time of the Mexican agrarian revolution, the most radical faction, that of Zapata and his followers, proposed a return to communal ownership of land, to what had been a pre-Columbian form of ownership respected by the Spaniards. A land, to what had been a pre-Columbian form of ownership respected by the Spaniards E land that had been a pre-Columbian form of ownership respected by the Spaniards 注:为什么要用to what? 2 蓝P110 Although the coordination of monetary policy can help facilitate the orderly financing of existing imbalances, it is unlikely that its effect on their size is significant in the absence of an appropriate fiscal adjustment. A it is unlikely that its effect on their size is significant in the absence of an appropriate fiscal adjustment E its effect on their size is not likely to be significant 注:是不是一般一个not+adj都优于un-adj? 3 蓝 P141 Intended primarily to stimulate family summer travel, the new airfare, which allows both an adult and a child to fly for the price of one ticket, and also shortens the advance-purchase requirement for family travel to a minimum of seven days rather than fourteen. C also shortens the advance-purchase requirement for family travel to a minimum of seven days rather than that of E also shortens the advance-purchase requirement for family travel to a minimum of seven days rather than 注:为何不需要加that of呢?that不是指代a minimum嘛? 4 蓝 p143 Bob Wilber became Sidney Bechet’s student and protégé when he was nineteen and, for a few years in the 1940’s, came as close to being a carbon copy of the jazz virtuoso in performance as anyone has ever come. A as anyone has ever come C as anyone ever had done 注:不应该表示came之前 过去的过去用过去完成时嘛~ 5 蓝 p159 For all his professed disdain of such activities, Auden was an inveterate literary gossip. A For all his professed disdain of such activities B Having always professed disdain for such activities 注:为什么选择A?是因为for表示清晰的因果关系,还是B不简洁?