1. "These countries lack experience in weighing costs and choosing between technologies," says one expert. 一位专家说,"这些国家缺乏估算成本和选择技术的经验。"
2. Parents choosing home schooling say the freedom of home learning allows some children to sit one or two GCEs by the age of 13. 选择家庭学校的家长说,由于在家学习自由,有些孩子13岁时便参加了一两门普通教育证书考试。
3. B.Despite the expense, you enjoy choosing gifts for any occasion. b.尽管要破费,你还是乐于为任何庆典盛会挑选礼物。