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Most cities in the country have introduced Clean Air Zones _________ factories and households are only allowed to burn smokeless fuel.
Every time she talked about being rejected in her hunt for a job, she seemed on the __________of tears, and I would quickly switch the conversation to another topic.
It is understandable that the health and welfare of their family is a(n) __________ concern for this young couple.
In the_________of research, it is an accepted fact that scientific publications have to be written or translated into English to get published, acknowledged, and cited.
Because she was so tall and slim, all the clothes looked marvelous on her and the other girls would ________their envy.
