Question

(2010·绍兴高一检测)Two________of textbooks will have been tried out in these two cities in the next three years.

A．series                                                     B．serie

C．copy                                                      D．set

Answer 1

　答案：　A

考查名词辨析。句意为：在未来的三年，两套教科书将在这两个城市进行试行。“两套”应用two series of，series单复数同形，故B错误，C、D两项应为复数形式。