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no manufacturer will go bankrupt for spending money on pollution control less money will be spent in buying pollution control devices manufacturers know how to control pollution more effectively all manufacturers have to take measures to control pollution
may should mustn’t needn’t
\; won’t don’t; will be \; won’t have don’t; have
change the anti-pollution standards for its products sell its products at a more expensive price buy materials at a higher price pay more money to its workers
are further polluting the air by using more oil than clean energy. are not really concerned with solving the problem of pollution. are attempting to reduce the pollution they have done to the air. are in need of research and equipment in pollution prevention.
haven’t they have they don’t they do they
Companies have not been given an equal chance to develop their business. A company will go bankrupt if its cars have to be installed with pollution control devices. The US government has not set up standards on pollution control for car producers. It is necessary to persuade producers to take effective pollution control measure.
to describe how a company can go bankrupt to emphasize the urgent need of cleaning up the environment to stress the importance of the government’s role in preventing pollution to tell how difficult it is to keep the environment free from air-pollution
are further polluting the air by using more oil than clean energy. are not really concerned with solving the problem of pollution. are attempting to reduce the pollution they have done to the air. are in need of research and equipment in pollution prevention.
manufacturers will not take care of pollution control on their own will few manufacturers are aware of the importance of air-pollution control air-pollution control devices are more expensive than other devices people like to buy cars that are equipped with pollution control devices
Yes, it will No, they won’t Yes, there will No, we aren’t
as much as pollution pollutions as many as as much pollution as so many pollutions as
haven’t they have they don’t they do they
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