My grandmother a lot of changes in Tianjin since she came here.A. seesB. can seeC. will se

问题补充：

My grandmother a lot of changes in Tianjin since she came here.

A. sees

B. can see

C. will see

D. has seen

答案：

A. sees

B. can see

C. will see

(答案→)D. has seen

解析： 含有since从句，主句通常用完成时，结构为have或has+过去分词，故本题选D。