问题
选择题
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
答案：D
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。
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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：D
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。