问题

You should have thanked the hostess before leaving.—I meant ________.But I couldn’t find her when I was leaving.

A:to do
B:to
C:doing
D:doing so

正确答案是：

同类题型

realizedthepolicehadspottedhim,theman_______theexitasquicklyaspossible

He couldn’t stand the noise made by the factory, so he wrote a letter to the newspaper to _________ about it

e of the Russian gas limit to Europe,attempts _______ to use botanical fuel as a source of power

What will you do tomorrow?— We’ll have a picnic if it ______ fine.

You are driving too fast Can you drive_________?