Question
The amount of water ________ by the United Nations for
drinking, washing, cooking and ________ proper hygiene is a minimum of 50 litres per person per day. Each question below has two blanks, each blank indicating that something has been omitted. Choose the set of words for each blank that best fits the meaning of the sentence as whole.Solution
In the first blank, recommended will be used as it has already happened in the past (UN has already recommended in the past). In the second blank, since, DRINKING, WASH-ING, COOK-ING is used, MAINTAINING will be used.
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