George once told me that he would visit our house but for various reasons heso far.A. didn

问题补充：

George once told me that he would visit our house，but，for various reasons，heso far.

A. didn

B. hasn

C. hadn

D. wouldn

答案：

A. didn

(答案→)B. hasn

C. hadn

D. wouldn

解析：B考查时态。句意：乔治曾告诉我他将拜访我，但由于各种原因，他到现在还没有来过。so far到目前为止，是现在完成时态的标志词。