问题
选择题
—You should have thanked the hostess before leaving.
—I meant ______. But I couldn’t find her when I was leaving.
A．to
B．to do
C．doing
D．doing so
答案
答案：A
这题考察不定式的省略式，完整的说法是：I meant to thank the hostess before leaving。因为上文已有了动词，下文就要省略，保留to。句意是：--你本应该离开前感谢女主人的，--我本来打算的，但我离开时找不到她。选A。