问题补充:
We can hardly believe what she says because she is changing her mind.
A. regularly
B. eventually
C. firmly
D. constantly
答案:
A. regularly
B. eventually
C. firmly
(答案→)D. constantly
解析:考查副词:A. regularly定期的,有规律的B. eventually 最后的,C. firmly坚定地D. constantly不断地,