A-A+
Mary was (surprised to) realize that it was (u
问题详情
Mary was (surprised to) realize that it was (us), her old (school friends), (calling) her from Paris.
A．surprised to
B．us
C．school friends
D．calling
参考答案
正确答案：B
解析：改为we。这里we是主语，因此要用主格形式。
考点：
