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).
The apostrophe is used to indicate the possessive case of nouns and indefinite pronouns; to mark character omissions in contracted words and dates; and to form the plurals of symbols, abbreviations, and some dates and numbers. 1. Possessives: Use an 's to indicate possession for a singular noun. Sarah's coat is black.llipses are a series of dots used to indicate the omission of words or paragraphs from quoted material. They can also be used to indicate hesitant speech. 1. Word Omission: When words are omitted from the beginning of a quotation, three periods are used as the ellipses.