cho tâm giác ABC vuông tại A,phân giác BD,kẻ DE vuông góc với BC tại E.Trên tia đối của tia AB lấy F sao cho AF=CE

.a).tâm giác ABD=tâm giác EBD.

b)BD là đương trung trực của AE.

c)AD<DC

mong mọi người trả lời sớm

B. Choose the word that has a different stressed syllable from the rest.

4.    A. celebrate                B. disappear                C. decorate                 D. symbolise

5.    A. energy                    B. dangerous              C. expensive               D. microwave

6.    A. ferry                       B. explain                   C. postcard                 D. swimsuit

Write the correct form of the words in brackets.

21. We believe that bullet trains ______________ (be) faster, safer and riders can avoid traffic jam.

22. The Scottish people ____________ (build) this castle long time ago.

23. My desktop ________________ (not work), so I can’t send you my email immediately.

24. Tom _______ (be) sick so he couldn’t go on the trip to Washington D.C. yesterday.

25.  In my opinion, we __________ __ (not use) coal for cooking and heating in the future. 

26. Although I prepared carefully, I ________ (get) nervous when giving my presentation. 

27. Studying abroad __________ (make) you more independent and open to new experiences.

28. Do you think robots ______________ (replace) human in the future?

29. Every Friday, Alex ____________ (join) different community activities with his friends after school.

30. John ______________ (not feel) well now so he cannot help his friends fix the solar panels.