Unemployment arises partly from overpopulation and if fines can’t keep the rich from having more than one child, we should say that the regulation is not ________. 

-- I’m very tired these days because of studying for physics.--Why not    music? It can make you    .

. —Do you still go jogging every morning?—Yes, I can’t think of a _______________ way to start a day.

Visitors from around the world came to this waterside village and were amazed at this ________ bridge，which had been hundreds of years old.

--- Have you seen “Titanic” 3D?--- Not yet. It’s said to be ________ worth seeing than the original one.