something that is good enough for the function it was intended for. - The school buildings are no longer f_____ for p________.

careful not to say or do anything that could upset someone - Please be very t___________ when you tell Sally that her friend did not want to visit her today.

waste gas from a vehicle’s engine that comes out through a pipe - We sat in the traffic jam, breathing in the e_________ f________ from the cars around us.

effort that you make with your body - I get out of breath with any kind of p_________ e__________.

alone and not having support from other people - I could not in the countryside and be so i__________. I like living in the city.

an area of countryside where fewer people live - Bus services to r_________ a_________ are very poor.

difficult to deal with or do - Racism is a t__________ subject to discuss in class.

to give people something they need - Next year, our school will p_______ all our books for free.

a healthy combination of different types of food - If you have a b_________ d________, you are getting all the vitamins you need.

to make sure that you do not touch or come near something - Try to a_______ direct c_______ w______ any of the chemicals.

a country with a lot of industrial activity and higher incomes - Our study covered a broad cross-section of the populations of d__________ c__________.

using the newest ideas, designs, and materials - This computer system uses s_________-of-the-a_______ technology.

to spend most of your time on only one subject or type of business - She would like to s______ in organic chemistry.