Cho tam giác ABC có BA = BC, có BN là tia phân giác. 
a. tam giác ABN = CBN
b. Chứng minh: BN là đường trung trực

Make complete sentences with the words provided:
1.We/can/cook meals/bring them/homeless peolple.
2.We can ask people/donate warm clothes/help them/rebuild their houses
3.Yesterday I/ go to school late because I/miss the bus.
Rewrite these sentences as directed:
1.My favourite hobby is collecting stamps.
=> I am.....
2.Lan finds it difficult to carve eggshells
=>.........
3.Mai tries to learn English because she want to go abroad
=>....................so.................
4.Because Hoa was sick, she didn't go to class yesterday.

=>....................because of...............so...........
5.Women are more careful drivers than men.
=>Women drive...........
6.My mother began to teach English 10 years ago.
My mother has........
7.The last exercise is difficult.This one is easy.
=>The exercise is......
8.Your house is more beautiful than my house.
=>My house......
9.My sister can sing English songs.I can sing English songs ( too)
=>..........
10.I don't draw well.My brother doesn't draw well ( either )
=>..............
11.We can paint this window in half an hour
=> It takes...........
12.The train was late because of the thick fog
=>Because............
13. I think no that city is more beautiful than Paris
=> I think Paris............................in the world.
14.Mr Pike teaches history of arts.Mrs May teachers history of music. ( same )
=> Mr Pike...........
15.This bike is 800,000 VND. That bike is 600,000 VND. (different )
=> The price.....................

Make complete sentences with the words provided:

1.father/enjoy/make pottery/I/too.
2.Why/not/you/take/jogging?/It/good/health
3.aunt/not know/how/use/computer/sister/either
4.brother/not like/collect/bottles/because/he/think/it/boring
5/Grandparents/read/letter/four times
6.The lakes/are full/rubbish.We should/ask our friends/clean them this Sunday
7.They have/live/the street this winter.We should ask people/help them.