In the United States there are, strict speaking, no national __1__

　　holiday, for each state must, through legislative enactment or __2__

　　executive proclamation, appoint the day which each holiday is __3__

　　celebrated. Congress and the president may establish legal holidays

　　for the District of Columbia and for federal employees throughout

　　the states and territories; and by long custom, days that receive

　　nationwide observation, such as Christmas, Thanksgiving, Labor __4__

　　Day, Independent Day, and New Year’s Day, are uniformly set __5__

　　apart by all states as legal, or public holidays. In 1968, federal __6__

　　legislation established Columbia Day as a legal holiday for the

　　District of Columbia and for the federal government beginning at __7__

　　1971. The law also provided begun in 1971 federal employees __8__

　　would be granted three-days weekends by observing Washington’s __9__

　　Birthday on the third Monday in February, Memorial Day on the

　　last Monday in May, Columbus Day on the second Monday in

　　October, and Veteran Day on the forth Monday on October. By

　　1971, most of the states also adopted the new dates. __10__參考答案及解析:

　　1.strict改為strictly

　　2.holiday改為holidays

　　因為原句的謂語動詞為復數are，所以holiday必須使用復數。另外no后面可以用復數也可以用單數。

　　3.which前面加上on

　　因為先行詞the day在關系從句鐘做狀語，還原回去應為：each holiday is celebrated on the day，所以必須加on。

　　4.obsevation改為observance

　　observation意思為“觀察，觀測”，observance則表示“遵守，慶祝”。

　　5.Independent改為Independence

　　獨立日的說法是“Independence Day”。

　　6.apart改為aside

　　set apart 指“使分離，使分開”，語義不同，set aside表示“留出，保留”的意思。

　　7.at改為in

　　8.begun改為beginning

　　動詞begin和分句的主語federal employees的關系是主動的，應此要用beginning。

　　9.three-days 改為three-day

　　用連字符連接起來的表示數量的名詞的前置修飾語的復數概念仍然是單數，如：

　　a million-pound banknote。

　　10.also前面加had

　　如果一個句子里面有by引導的時間狀語從句則動詞一般用完成體。