问题
选择题
It was necessary to _____ the factory building as the company was doing more and more business.
extend B. increase C. lengthen D. magnify
答案
答案：A
考查动词词义辨析。extend意为“扩大”。lengthen拉长,延长。magnify放大。 Spread vi. 传播；vt.展开；