His explanation that he was at loss what to do next doesn't hold water.
The sight of the snake made his hair __________ on end.
—Do you know our town at all?—No, this is the first time I __________ here.
She _____ as the illness grew worse.
They'll be here soon. _____ ,let's have some coffee.
People _____ have been invited here to discuss what to do next.