Cho tam giac ABC. Tren tia doi cua tia AB lay diem D sao cho AD=2AB.Tren tia doi cua tia AC lay diem E sao cho AE=2AC. Chung minh tam giac ADE dong dang voi tam giac ABC.

Fill in the given gaps with a correct words or phrase to complete the sentences:

1. By most standards,there are a maximum of seven ...........................-Africa ,Antartica , Asia , Australia ( or Oceania) , Europe , North American and South America.

2. Thomas Edison is one of the top ten greatest .......................world. You can reference more at this link:https://www.biographyonline. net/scientists/top 10 -inventors.html.

3. Please log in your email account in order to download the.....................of our trip to Nha Trang . We will inform participants if there are any futher changes.

4. When I slowly walked along the seashore of Nha Trang Beach. I saw a foreign man about sixty playing.....................Everybody on the beach was attracted by his performance.

5. People in Vietnam usually use the ...........................of Lac Long Quan and Au Co as an explanation for their origin.

6. The life of nomadic people is accossiated with .........................provide their cattle green grass to eat and play with nature

7. Humans have significantly achiered a lot of breakthroughs in the because they............................of space. However, there are still lots of arguments on this progress.

8. Some people like travelling a lot because they have more chances to...............................new destinations , new cultures , and things that they have never known before.

9. Henriette Bui Quang Chieu was the first ..............................in Vietnam. She went to medical school in France, and graduated there in 1934.

10. Please dial 114 to call a ......................in case of needing help form Fire Pepartment in Vietnam.

11. The house my mother bought in Da Lat is rumoured to be ..................................by the spirit of a young girl