题目

 It was necessary to _____ the factory building as the company was doing more and more business.    A. extend    B. increase    C. lengthen    D. magnify   答案：A--- Helen, what’re those on the table?--- They are an ___________ and three __________ .A. pear; strawberry B. apple; strawberry.C. apple; strawberries D. pears; strawberries.