Cho tam giác ABC vuông tại A, đường cao AH. Biết BH=4cm; CH=9cm

a) Tính đường cao AH, góc B và C của tam giác ABC

b) Gọi O là tâm đường tròn ngoại tiếp tam giác ABC. Trên tia đối của tia BO lấy điểm M sao cho B là trung điểm của MO, C/M tam giác AOB là tam giác đều

c) Tính chu vi tam giác MAC

9- Mai ............................................. Maryam to Hanoi last year. (invitation)

10- Some designers have ........ the ao dai by printing lines of poetry on it. (modern)

11- He is very rich, so he can live ........................................ (depend)

12- The singer looks ......................................... on the stage. (attract)

13- Team games help to ................................. the students’ solidarity. (strong)

14- We like going in his car as he is a ................................. driver. (care)

15- This stamp ...................................... is valuable. (collect)

1/ Circle the word whose main stress is placed differently from the others

1 A. cannon B. chaos C. culture D. direct

2 A. Easter B. festive C. rename D. harvest

3 A. highlight B. enjoy C. reverse D. review

4 A. inves6 B. major C. perform D. machine

5 A. leather B. account C. adaps D. decide

6 A. answer B. believe C. rely D. decrease

7 A. police B. result C. correct D. traffic

8 A. funny B. pretty C. lucky D. alone

9 A. breakfast B. pepper C. hotel D. ticket

10 A. parade B. copy C. replace D. arrive

13 All the children are interested in the performance of the animals

=> What...................................................

20 His grandparens are going to pay a visit to Hanoi

=> Who................................................

1 HCM city is about 120km far from Vung Tau

=> How................................................

2 My children watched T.V two hours last night

=> How.................................................

3 It took him half a hour to drive to his office

=> How...........................................

4 The weather was to nice and warm

=> What...................................

5 She visited many interesting placesY.T

=> What.................................

6 The students enjoyed the natural beauty of Dalat

=> What....................

7 Her parents left for Hanoi two days ago

=> Where..................

8 The little girl played the piano very well

=> How...........................

9 My penpal friends likes the Vietnamese food

=> Who......................................

10 The girls have waited for the teacher for an hour

=> How................................

11 They missed the bus this morning because they got up late

=> Why..........................................

6- Uniforms make students .................................................................................... of their school. (pride)

7- Jeans and T-shirts are his ........................................................................................... clothes. (favour)

8- Red ............................................................................................................................ danger. (symbol)