Read the text below and decide which answer (A, B, C or D) best fits each space.

LIVING A HEALTHIER LIFE
Keeping fit and healthy may seem difficult, but there are a few easy-to-follow guidelines. Firstly, a balanced diet is absolutely essential. This (50)…….selecting food that is (51)…….in salt and sugar. Experts recommend reducing the amount of fat in your diet, as too much can lead to heart problems. They also suggest increasing the (52)………..of high fiber food we eat. This comes in the (53)……….of fresh fruit, vegetables, whole meal bread and pasta. As well as being packed (54)................ vitamins and minerals, they are delicious too. Secondly, it’s important to fit exercise into your daily (55)……… This can be done by simply walking as much as possible and climbing stairs instead of (56)………..the lift. Exercise is necessary to maintain a healthy body, as well as increasing energy levels and (57)………you feel generally fitter and happier. Finally, staying relaxed is important for good health. Too much stress can (58)……..to a variety of illnesses, from headaches to high blood pressure. (59)………possible, do things you enjoy and treat yourself occasionally. So the message is simple- enjoy yourself but learn to respect your body too. It’s all a question of getting the balance right.
(54) ...................
A.with
B.by
C.of
D.in

Các câu hỏi liên quan

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions .

An air pollutant is defined as a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetation, or materials adversely. Air pollution requires a very flexible definition that permits continuous change. When the first air pollution laws were established inEngland in the fourteenth century, air pollutants were limited to compounds that could be seen or smelled - a far cry from the extensive list of harmful substances known today. As technology has developed and knowledge of the health aspects of various chemicals has increased, the list of air pollutants has lengthened. In the future, even water vapor might be considered an air pollutant under certain conditions.
Many of the more important air pollutants, such as sulfur oxides, carbon monoxide, and nitrogen oxides, are found in nature. As the Earth developed, the concentration of these pollutants was altered by various chemical reactions; they became components in biogeochemical cycles. These serve as an air purification scheme by allowing the compounds to move from the air to the water or soil. On a global basis, nature's output of these compounds dwarfs that resulting from human activities.
However, human production usually occurs in a localized area, such as a city. In such a region, human output may be dominant and may temporarily overload the natural purification scheme of the cycles. The result is an increased concentration of noxious chemicals in the air. The concentrations at which the adverse effects appear will be greater than the concentrations that the pollutants would have in the absence of human activities. The actual concentration need not be large for a substance to be a pollutant; in fact, the numerical value tells us little until we know how much of an increase this represents over the concentration that would occur naturally in the area. For example, sulfur dioxide has detectable health effects at 0.08 parts per million (ppm), which is about 400 times its natural level. Carbon monoxide, however, has a natural level of 0.1 ppm and is not usually a pollutant until its level reaches about 15 ppm.

According to the passage, human-generated air pollution in localized regions _______.
A.will damage areas outside of the localized regions
B.will react harmfully with natural pollutants
C.can be dwarfed by nature's output of pollutants
D.can overwhelm the natural system that removes pollutants