"Prepositions and Time: Let’s start by looking at how we talk about time. English speakers use in to refer to a general, longer period of time, such as months, years, decades, or centuries. For example, we say “in April,” “in 2015” or “in the 21st century.”

Moving to shorter, more specific periods of time, we use on to talk about particular days, dates, and holidays . You may hear, “I went to work on Monday,” or “Let’s have a picnic on Memorial Day.”

For the most specific times, and for holidays without the word “day,” we use at. That means you will hear, “Meet me at midnight,” or “The flowers are in bloom at Easter time.”"

Parts of days (morning, aftrnoon)

Months (April, May)

Years

Months

Centuries

Holidays with "day" (Labor Day, Christmas Day)

Days of the week (Monday)

Days of the month (Fourth of July)

Dates (April 15, my birthday)

Holidays without day (Easter, New Year's)

Time (noon, midnight, 8:00, 5 am)"

"Prepositions and Place: When English speakers refer to a place, we use in for the largest or most general places. You can say that “VOA is located in Washington, D.C.” And “for the best food, try the restaurants in Chinatown.”

For more specific places, like certain streets, we use the preposition on. You may know that President Obama lives on Pennsylvania Avenue in Washington, D.C.

Finally, we get to the most specific places. For exact addresses or intersections, we use the preposition at. If I invited you to visit us here at VOA, I would say, “Come to my office at 330 Independence Avenue.” To be exact, it’s at the corner of Independence and 3^rd Street.”"

Neighborhoods (Chinatown)

Cities (Washington)

Countries (The United States)

*Places with a Boundary

Strees, Avenues (Pennsylvania Ave.)

Islands (Fiji)

Large vehicles (train, bus, ship)

*Surfaces

Addresses (1600 Pennsylvania Ave.)

Specific locations (home, the corner)

*Points"