Week2-unit1-Fri

Most cities in the country have introduced "Clean Air Zones" __ factories and households are only allowed to burn smokeless fuel.

He knows that the __ of social status can consume vast amounts of his time and effort.

The doctors are at a loss because so far no medicine has been found to __ the spread of the disease.

We see many special education directors trying to __ the quality of their programs with much less money and much smaller staff.

People there are told it is their __ duty to support the national economy by buying their own products.

Darwin's thinking both drew upon and__ the conventional ideas of his time.

In spite of all your __, there may be times when you encounter difficulties in the training process.

My advice to Mr. Stewart is to think carefully before entering into a career in medicine, as this is a field which requires a lot of __ and long working hours.

Most Chinese parents would prefer to choose some professions that are stable and could bring __ and economic benefits.

It is legally possible for an elderly person to __ someone to act for them, should they become incapable of looking after themselves.