Performance Gap. Background. In recent years, the housebuilding industry and government have grown increasingly concerned over the potential gap between design and as-built energy performance.
The apostrophe (â or ') is a punctuation mark, and sometimes a diacritical mark, in languages that use the Latin alphabet or certain other alphabets.In English, it serves three purposes: 1  The marking of the omission of one or more letters (as in the contraction of do not to don't).he apostrophe (â or ') is a punctuation mark, and sometimes a diacritical mark, in languages that use the Latin alphabet or certain other alphabets. In English, it serves three purposes: 1  The marking of the omission of one or more letters (as in the contraction of do not to don't).
part 1 of 3 using possessive apostrophes 1 use an apostrophe to indicate ownership by a proper noun an apostrophe with an s after a proper noun indicates that the person place or thing owns whatever noun follows his or her namefor example mary s lemons we know the lemons belong to mary because of the sart 1 of 3 using possessive apostrophes 1 use an apostrophe to indicate ownership by a proper noun an apostrophe with an s after a proper noun indicates that the person place or thing owns whatever noun follows his or her name