河南成教 / 河南理工大学
正确率：100%
12[单选题]
________ he known that it was to be the president’s last press conference, he would have filmed the occasion.
A.Should
B.If
C.Were
D. Had
________ he known that it was to be the president’s last press conference, he would have filmed the occasion.
参考答案：
佳题速递：