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).
possessive case the primary use of the apostrophe is to indicate the possessive case singular possessive to form a possessive with a singular noun use an apostrophe followed by an s examples my aunt s home is in montanaour supervisor s name is joshua this is generally true even if the word itself ends with an s still add an apostrophe and sse an apostrophe plus s to create the possessive case of indefinite pronouns indefinite pronouns are pronouns that do not refer to any particular person or thing such as somebody anybody someone anything something and so forth examples i found someone s keys on the desk over there