Tom is good at his work, but he seems to _____ confidence.
She was not, as a matter of fact, __________ the situation she was in.
—Is Jason all right? He looks so tired!—Not sure. He __________ deep into the night yesterday. He's having an exam soon.
He didn't visit his parents living in Toronto regularly, only __________.
To stay safe in the forest at night, we should try hard to keep the fire __________.
The soldiers went on to the next village __________ the heavy rain.