In the sentence 'We celebrate Independence Day on July 4,' the underlined holiday is:

INDEPENDENCE DAY is on the USCIS HOLIDAYS vocabulary list. It is celebrated on JULY 4 (the 4th of July) each year and commemorates the adoption of the Declaration of Independence on July 4, 1776. Other holidays on the USCIS reading vocabulary list: PRESIDENTS' DAY (third Monday in February, honors George Washington and other presidents); MEMORIAL DAY (last Monday in May, honors those who died in military service); FLAG DAY (June 14, commemorates adoption of the American flag in 1777); LABOR DAY (first Monday in September, honors workers); COLUMBUS DAY (second Monday in October, commemorates Columbus' 1492 voyage); THANKSGIVING (fourth Thursday in November, traditional harvest celebration). Common reading test sentences: 'Independence Day is in July.' 'Memorial Day is in May.' 'Labor Day is in September.' 'We celebrate Thanksgiving in November.' 'Columbus Day is in October.' Notice the pattern: many sentences pair a holiday name with the month it's celebrated. Studying the months alongside the holiday names is helpful preparation. Reading test sentences are short (5-12 words typically) and use common sentence structures.