Question

完成句子

She is rather difficult to make friends with, but her friendship, ________(一旦获得)is more true than any other．(gain)

Answer 1

答案：
解析：

　　答案：once(it is)gained

　　解析：考查状语从句。gain与her friendship之间是被动关系，故用过去分词；本句中主、从句主语都是her friendship，因此可以省略it is。