问题补充：
—What a pleasant surprise to see you here! Iyou Shanghai.
—Me too. But I there next Saturday.
A. think; have gone to; am going
B. thought; had gone to; will go
C. thought; had been to; would go
D. think; have been to; am going
答案：
A. think; have gone to; am going
(答案→)B. thought; had gone to; will go
C. thought; had been to; would go
D. think; have been to; am going
解析：本句根据判断可知第一空为一般过去时，而又在宾语从句中，当主句为一般过去时，从句要用过去时的某种形式，故选答案为B
