–You’ve got a stomachache? But we ate at the same place. How come my stomach is fine? --You have an iron stomach! Mine isn’t ___ strong.
---I hear that Thomas ____ his holiday in South Africa. ---Yes. He’s prepared for his trip.
The teacher insisted that I ____ a mistake and insisted that I ____ the physics problem again.
Without more wood ____ the fire, it would soon go out.
The workers are talking about the doctors and the offices ____ they visited yesterday.
Mr. Smith was ____ to break his habit of smoking after the medical examination last month.