Earth Day is a birthday! Just like a birthday is a special day to celebrate a person, Earth Day is a special day that celebrates the Earth. It is a day to remember to take care of our planet.       Earth Day was born on April 22,1970, in San Francisco, California. It is now the largest, most celebrated environmental event worldwide. Every year, many countries around the world join together in the celebration of Earth Day on April 22nd. On Earth Day, people celebrate by doing things that help to protect the environment. Some things people do to help the Earth are: turn off the lights to conserve energy, plant trees, recycle, and pick up garbage in their communities.       You don’t have to wait for Earth Day though, you can help the environment every day! 1.   Where was Earth Day started? ............................................................................................................................................................. 2.   On what day is Earth Day celebrated? ................................................................................................................................................................. 3.   What can people do to help the Earth? ............................................................................................................................................................... VII. Complete the second sentence so that it means the same as first one.   1.   There are a few students taking part in the event. ......................................................................................................................................... 2.   You should turn unwanted lights off, or you will waste a lot of electricity. ................................................................................................................................................... 3.   Let’s write about the three Rs? .......................................................................................................................................................... 4.   Plastic bags are cheaper than reusable bags. ............................................................................................................................................................ 5.   It’s not good to throw old clothes away. ............................................................................................................................................................. 6.   Remember to turn the tap off when you are brushing your teeth. ......................................................................................................................................................... 7.   Computers won’t be necessary because your TV will do everything. ......................................................................................................................................................... 8.   Maybe Peter won’t come to the party tonight. ........................................................................................................................................................... 9.   I couldn’t phone you because I didn’t have your number. ............................................................................................................................................................ 10. Very few cities in Vietnam are as rich as Da Nang. ................................................................................................................................................................