As a new graduate, he doesn’t know _______ it takes to start a new business.
—Happy birthday!—Thank you! It's the best present I________ for.
We ________ have bought so much food now that Suzie won't be with us for dinner.
—Why are your eyes so red? You ________ have slept well last night.—Yeah, I stayed up late writing a report.
Harry is feeling uncomfortable.He ________ too much at the party last night.
Days later, my brother called to say he was all right, but ________ say where he was.