I think he must be writing his essay at home now, ______?
The students running on the playground are all in their uniforms, so it's hard for you to _____ my sister in them.
—You were brave enough to shout at the meeting.—Well, now I regret _____ that.
The general has been invested _____ full power.
The police have asked for witnesses of the accident to _____ to offer some help.
Her suggestion _____ to see Shanghai World Exposition interested every one of us.