1.   She keeps them with more expensive but less valuable jewels, in a box, brown and dry.

2.   The bulbs are expensive but the free, informative and beautifully photographed catalog makes wonderful reading.

3.   The currency has been declining in value, making exports less expensive but imports more expensive, a recipe for higher inflation and further interest rate increases.

4.   Yes, that oil is expensive but this is a quick bread to serve with tea or sherry rather than feed the troops.