解析：A. 寻找 B. 代替; C. 因缺乏 D. 生怕，以免。句子的完整意思应该是：大城市建起越来越多的高楼大厦，因为缺乏空间。,
30. We’ve just moved into a bigger house and there’s a lot to do. Let’s it.
A. keep up with B. do away with C. get down to D. look forward to
30. 答案：C
考点：动词词组辨析
解析：A. keep up with 保持 B. do away with废除，去掉；C. get down to着手处理D. look forward to盼望，期待
33. – In this day and age, women can have children and jobs as well.
--I can’t agree more. It’s great to have the two .
