未知题型 The price of beer _______ from 50 cents to $4 per liter during the summer season. A) altered B) ranged C) separated D) differed
未知题型 This crop has similar qualities to the previous one, _______ both windresistant and adapted to the same type of soil. A) being B) been C) to be D) having been
未知题型 Although they plant trees in this area every year, the tops of some hills are still _______. A) blank B) hollow C) vacant D) bare