1.d

2.c

3.c

4.a

5.b

6.a

/ɜː/ world, girl, birth, work, early, learn, expert, sunburn, shirt, hurt, word, dirty.
/ə/ Occasion, answer, heard, mother, doctor, around, neighbor, upon, parent, singer, nature, collect, monopoly, arrot.

1.C        2.B      3. No thanks      4.B          5.A          6.Are there

7.D        8.Talking          9.B

\(\dfrac{x}{2}=\dfrac{y}{3}=\dfrac{z}{4}\) và \(x^2-2y^2+z^2\) = 8

Giải hộ vs ạ

l.                                                                                               lI.

1. a loaf                                                                                   (1).beat

2. a packed                                                                             (2).heat

3. a glass                                                                                 (3).pour

4. a carton                                                                                (4).place

5.a slice                                                                                     (5).fold

6.a piece                                                                                    (6).serve

7.a bottle

8.a bowl

9.a bar

10.a can

III.

1.beef U

2.apple  C

3.bread U

4.biscuit C

5.rice U

6.spring roll C

7.spinach U

8.egg C

9.butter U

10.lemonade U

11.sandwich C

12.ham U

13.turmeric U

14.pancake U

15.vegetable C

16.coffee U

17.sugar U

18.orange C

1. am loving ➝ love                          

2. are throwing ➝ throw                   7. are preferring ➝ prefer

3. is seeming ➝ seems                    8. am not understanding 

4. are needing ➝ need                     

5. are taking ➝ take

6. are winning ➝ win

7. are preferring ➝ prefer

8. am not understanding ➝ don't understand

9. wait ➝ am wating

10. does ➝ is doing

Ta có :

\(\dfrac{cy-bx}{x}=\dfrac{az-cx}{y}=\dfrac{bx-ay}{z}=\dfrac{bxz-cxy+cxy-ayz+ayz-bxz}{ax+by+cz}=0\)

\(\Rightarrow\dfrac{cy-bz}{x}=0\) \(\Rightarrow cy=bz\) \(\Rightarrow\) \(\dfrac{b}{y}=\dfrac{c}{z}\left(1\right)\)

\(\Rightarrow\dfrac{az-cx}{y}=0\) \(\Rightarrow az=cx\) \(\Rightarrow\dfrac{a}{x}=\dfrac{c}{z}\left(2\right)\)

Từ (1) và (2) suy ra : \(\dfrac{a}{x}=\dfrac{b}{y}=\dfrac{c}{z}\)

Rewrite

1.I find collecting glass bottles interesting

My hobby is collecting glass bottles.

2.Van's brother usually goes to work by motorbike

Van'a brother usually rides motorbike to work.

 3.What hobby do you like best,Lan? (favorite)

What is your favorite hobby, lan?

4.Linh finds playing boarding games boring. (doesn't like)

Linh doesn't like playing board games.

5.My sister enjoy arranging flowers. (interesting)

My sister finds arraging flowers interesting.

III.

1.C          2.A          3.D         4.C         5.B

Bài 5 mình chịu 😅