—What did your son say in the letter?—He told me that he the Great Wall the next day.A. w

问题补充：

—What did your son say in the letter?

—He told me that he the Great Wall the next day.

A. will visit

B. has visited

C. is going to visit

D. would visit

答案：

A. will visit

B. has visited

C. is going to visit

(答案→)D. would visit

解析：句意:你的儿子在信中说什么?他告诉我他第二天要去参观长城.结合语境可知从句描述的是站在过去角度看将来发生的动作,故用过去将来时态,故选D.