cho biết tg alpha =1/3 tính tỉ số lượng giác còn lại của góc alpha

1.      I must clean this................................ room ( dirt)

2.      Thanks for everything. I had a................................. time ( wonder)

3.      Why do they give such............................... parties? (noise)

4.      His broken arm is still very.......................... ( pain).

5.      Is lunch ready yet? They’re very........................ ( hunger)

6.      I wish you’d be........................................ instead of telling me lies. (true)

7.        How many.................................... holidays do you have. ( nation)

8.      I hope we have................................. weather for our holiday. ( sun)

9.      What happened two years ago is not really.......................... to the situation now. ( compare)

10.  The fire was caused by an....................... fault in the television. ( electric)

11.  This is an.................................. piece of work. ( admire)

1.      I feel very tired now because I was................................ last night. ( sleep)

2.      The Beatles is a (fame).................................. band.

3.      The children always get bored on a....................... day( rain)

4.      The film was........................... and he became very rich. ( success)

5.      We have a............................ newspaper in this town. ( week)

6.      Be careful! The road is very......................... (ice).

7.      The president was a very.......................... man. ( power )

8.      Thousands of people were made.......................... by the war .( home)

Exercise 4: Tìm danh từ chỉ sự vật, sự việc cho các từ sau: 1. famous .......................... 10. strong ............................. 2. interesting .......................... 11. manage ............................. 3. educate .......................... 12. varry .............................. 4. long .......................... 13. decide ............................... 5. happy .......................... 14. admire ................................ 6. develop .......................... 15. collect ............................... 7. joy .......................... 16. attract ................................ 8. prepare .......................... 17. teach ............................... 9. beautiful .......................... 18. friend ................................

ΔABC vuông tại A, BC = 3√5cm. Hình vuông ADEF có cạnh 2cm, D ∈ AB, E ∈ BC, F ∈ AC. Tính AB, AC