Question

Now I regret ______ those weight-loss pills.

A．took

B．taking

C．taken

D．to take

Answer 1

B

试题分析：考查动名词做宾语：句意：现在我后悔吃这些减肥药。Regret doing“后悔做过…”，regret to do“后悔去做…”，选B。