A．For an artist, the ability to feel is more important than the ability to think.
B．It is prudent to think that mental and physical beauty are always separated.
C．Americans should have some wood carving in their house decorations.
D．Modern jewellery lacks delicacy or refinement and is deficient in taste.

A．futures contractors have made profits out of price surges
B．Americans haven’t learned to think realistically about oil
C．greedy oil companies have conspired to raise oil prices
D．hydrogen-powered cars would have better mileage