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).
Also includes how to divide words; use of numerals/numbers; possessives; and common errors in punctuation. Apostrophe (â) is used to indicate possession, contractions, and plurals. The possessive form of singular nouns ends in âs, including nouns ending in s, x, z, ch, or sh. For example: a dogâs life, a lassâs smile.