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Modal Verbs

To express about ability or permission, we use can verb. May and could use for permission and possibility, while might is used for remote possibility. In the obligation situations we use might and have to,but should to giving advice and recommendatio

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Plants and life

Plants are very important in our life, they are the only group of living beings, which can produce their food by their selves, depending on the green pigment in the presence of sunlight, plants take simple minerals and water from soil and carbon diox

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