题目

The farm as well as its neighbouring hills we once spent so much time _____ on a new look as recently as last year.    A. on has taken    B. has taken    C. on having taken    D. having taken 答案：A 解析: 易错选B或C, we once spent so much time on实际作定语,on后所填是谓语动词,由as well as连接的并列的句子主语,谓语应和as well as之前的The farm保持一致,故用单数形式.

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