The quotation was erroneously_____ to a British poet

You want to know the price of something so you say, ____ ?

A bad mannered person is disliked by ———.

People who were born at very high altitudes often have larger chests and lungs-______who live at sea level

Now that we have succeeded in isolating this drug and discovering its nature, our next problem is to plan its_______________ in the laboratory. Fill in the blank-