题目内容:
They didn′t accept my invitation atfirst, but I ______ persuade them at last.
A.could
B.was able to
C.might
D.can
参考答案:
答案解析:
They didn′t accept my invitation atfirst, but I ______ persuade them at last.
A.could
B.was able to
C.might
D.can