Cho tam giác ABC. E thuộc NC. Qua E vẽ đường thẳng // BC, cắt AB tại F và đường thẳng //AB, cắt BC tại D. Giả sử AE =BF CMR:

A, tam giác AED CÂN

B, AD là phân giác góc A

Cho tam giác ABC. E thuộc NC. Qua E vẽ đường thẳng // BC, cắt AB tại F và đường thẳng // AB, cắt BC tại D. Giả sử AE = BF. CMR:

A, tam giác AED cân.
B, AD là phân giác góc A.

Trình bày bài giới thiệu ngắn về một cuốn sách (cuốn truyện lịch sử).

Lập dàn ý chi tiết ạ. Em đang cần gấp ạ.

Exercise 1: Put the verb in brackets into the present simple or past simple
1. We _________ (go) to the beach last weekend.
2. My cousins _________ (not/ visit) us every weekend.
3. ___________ (your mum/ make) a chocolate yesterday?
4. I _______ (send) Jessica an email yesterday afternoon
5. The children always ______ (do)  their homework yesterday afternoon.
6. Last year, I ___________ (travel) to Japan. 
7. ___________ you ___________ (have) dinner last night?
8. He ___________ (arrive) from the airport at 8:00, ___________ (check) into the hotel at 9:00, and met the others at 10:00.
9. I ___________ (receive) three messages two minutes ago.
10. She ___________ (work) at the movie theater after school.
11. Yesterday she ___________ (go) to the cinema and ___________ (watch) a horror movie.
12. Carlos always ___________  (eat) spaghetti but two days ago he ___________  (eat) soup.
13. We seldom ___________ (drink) alcohol during the forenoon.
14. Somebody ___________ (take) the flowers from the graves in the morning
15. When ___________ your grandpa ___________ (come) home after war?
16. Some girls ___________ (not/ read) the book yesterday
17. When ___________ (be) they in London the last time? - I think in 2002
18. Why ___________ you ___________ (help) your brother with the homework? - Because he ___________ (be) rather lazy all the time
19. My dog sometimes ___________ (catch) a mouse and ___________ (bring) it to the front door