1B

2C

3D

4C

5C

bn ơi ko cs phần gach5 chân

1.B

2.C

3.D

4.C

5.B

1: A

2:A\

HT

A

A

1. A  

2. A

Chúc em học tốt nha!

1. ____________ you celebrate Thanksgiving in October every year?

2. Is her mom cooking for Thanksgiving?

3. ____________ Thai people celebrate Songkran Water Festival in April?

4. ____________ you ready to have an unforgettable time in Halloween music class?

5. Does the Perfume Pagoda Festival take place in the North of Viet Nam?

6. ____________ necessary for teenagers to celebrate Valentine’s day?

7. If they can't organize the festival on the ground, ____________ they do it in the air?

8. ____________ greatest personalities go to Cannes Film Festival every year?

9. ____________ Mr Buong prepare for Christmas season with only a Christmas tree?

10. ____________ Keo Pogoda Festival in India the most colorful festival in the world?

11.Although the acting is wonderful, the ending is very ________

12.They spent a huge amount of money on the film; .................. it was not a big success

13. ..................Mr Buong is a famous teacher, he can't advise any lazy students to work hard.

14.Who is going to .................. the Oscar for Best Actor this year?

15._.........How far....... is it from your house to the nearest station? – It’s about 2 kilometres.

1. ____________ you  celebrate Thanksgiving in October every year?

2. Is her mom cooking for Thanksgiving?

3. ____________ Thai people celebrate Songkran Water Festival in April?

4. ____________ you ready to have an unforgettable time in Halloween music class?

5. Does the Perfume Pagoda Festival take place in the North of Viet Nam?

6. ____________ necessary for teenagers to celebrate Valentine’s day?

7.If they can't organize the festival on the ground, ____________ they do it inthe air?

8. ____________ greatest personalities go to Cannes Film Festival every year?

9. ____________ Mr Buong prepare for Christmas season with only a Christmas tree?

10. ____________ Keo Pogoda Festival in India the most colorful festival in the world?

11.Although the acting is wonderful, the ending is very ________

12.They spent a huge amount of money on the film; .................. it was not a big success

13. ..................Mr Buong is a famous teacher, he can't advise any lazy students to work hard.

14.Who is going to .................. the Oscar for Best Actor this year?

15._..How far is it from your house to the nearest station? – It’s about 2 kilometres.

I. Choose the answer A, B, C or D which best fits the space in each of the sentences.

1. In our classroom ____________ some lovely pictures on the wall.

2. The cinema is on the left, ______________ the flowers shop.

3. Jane seldom gets up early in the morning but Bill _______________ .

4. She sings better than every body else in this group ________________

5. We need _________ how many books there are on the shelf.

6. ______________ do you buy this radio? – To listen to music.

7. We __________ to visit our dentist twice a year.

8. I bought ______________ yesterday.

9. Being _________ the risks is the safe way to water play.

10. - Mother: “Could you do me a favor?”    - Kate: “______.”

      A. No, thanks. I’m fine                                B. Yes, that’s kind of you

      C. Yes, sure                                                  D. Yes, thank you

11. Practising ______ English anywhere you can is a way to better your speaking skill.

      A. speak                     B. speaking                C. to speak                 D. for speaking

12. Soak some old newspapers in a ______ of water overnight.

      A. pair                        B. bunch                    C. bucket                   D. tube

13. Mrs. Thanh: “______ you give the book to me, please?”           - Mai: “Of course.”      .

      A. Will                       B. Shall                      C. Do                          D. Should

14. The winners are the first ones ______ a fire.

      A. make                      B. makes                    C. making                  D. to make

15. Children may drink or eat chemicals and drugs ______ they look like soft drinks and candy.

      A. until                       B. because                 C. although                D. so that

B. has lived – was

B. has lived – was

Đ/A: B

ab = a : b

a+m/b+m = (a + m) : (b + m)

a+m/b+m >a /b

ĐKXĐ: \(a>0;a\ne1\)
\(\left(\dfrac{\sqrt{a}}{\sqrt{a}-1}-\dfrac{2\sqrt{a}}{a-\sqrt{a}}\right):\dfrac{\sqrt{a}+1}{a-1}\)
\(=\left(\dfrac{\sqrt{a}}{\sqrt{a}-1}-\dfrac{2\sqrt{a}}{\sqrt{a}\left(\sqrt{a}-1\right)}\right).\dfrac{a-1}{\sqrt{a}+1}\)
\(=\left[\dfrac{\sqrt{a}.\sqrt{a}}{\sqrt{a}\left(\sqrt{a}-1\right)}-\dfrac{2\sqrt{a}}{\sqrt{a}\left(\sqrt{a}-1\right)}\right].\dfrac{a-1}{\sqrt{a}+1}\)
\(=\left[\dfrac{\sqrt{a}\left(\sqrt{a}-2\right)}{\sqrt{a}\left(\sqrt{a}-1\right)}\right].\dfrac{a-1}{\sqrt{a}+1}\)
\(=\dfrac{\sqrt{a}-2}{\sqrt{a}-1}.\dfrac{\left(\sqrt{a}-1\right)\left(\sqrt{a}+1\right)}{\sqrt{a}+1}\)
\(=\sqrt{a}-2\)

a(b+1)+b(a+1)=(a+1)(b+1)

<=>ab+a+ab+b=ab+a+b+1

<=>ab+a+ab+b-ab-a-b=1

<=>ab=1 (đpcm)

1. This year we wil have Tet at __e end of January________.

2. We decorate our ___ house_______.

3.We buy __flowers______ and_ plants___.

4. We shouldn’t burn __fireworks________.

5. We eat _ great food___ and get __lucky money________during Tet.

6. Tet is a time for __family gatherings________.

1A                   2C                   3D                   4A                   5B

1A

2C

3D

4A

5B