I did not expect that she is absent
应当改成
I did not expect that she was absent
理由：that she was absent是宾语从句,谓语动词 did not expect是一般过去时,所以宾语从句
中的时态也应该用一般过去时,即把is改成was. I did not expect that she is absent
应当改成
I did not expect that she was absent
理由：that she was absent是宾语从句,谓语动词 did not expect是一般过去时,所以宾语从句
中的时态也应该用一般过去时,即把is改成was.