问题
选择题
---Laura calls on her teacher pretty ____, doesn’t she?
---Yes. At least three times every week.
A．finally
B．officially
C．frequently
D．gradually
答案
答案：C
词义辨析。A.最后 B. 正式的 C. 频繁的 D. 渐渐的。句意：劳拉给她的老师打电话相当频繁，是吗？是的。最好每周三次。故选C。