1 .luckily , He passed the exam .

2 . từ flueng viết sai nha bạn - Sửa : fluent

    Mai speaks English fluently .

Sử dụng thì tương lai đơn hoặc tương lai gần :

1) I love London . I (probably  /   go ) ........probaly will go.......... there next year.

2) What (wear / you ) ...................are you going to wear................ at the party tonight ?

3) I haven't made up my mind yet . But I think I ( find) ...........will find.......... something nice in my mom'wardrobe.

4) I completely forget about this . Give me a moment . I (do) .......am going to do........ it now .

5) Tonight ,I (stay)...............am going to stay............ at home . I've rented a video.

6) I feel dreadful . I (be) ..................will be............ sick.

7) If you have any problem . I ( help) ...............will help............. you.

8) The weather forecast says it (not / rain ) ............isn't going to rain.............. tomorrow.

9) I promise that I (not / come ) .............won't come.......... late.

10 ) Look at those clouds . It (rain).................is going to rain.................. now.

1) Will probadly go

2) Will you wear

3) Will find

4) Am going to do

5) Will stay

6) Will be

7) Will help 

8) Won't rain

9) Won't come

10) Is going to rain

1.goes

2.meets

3.plays

4,is helping

5.are cooking 

6.are having 

k mk nha

goes, meets , play, is helping, are cooking, are having

1.a

2.c

3.b

4.c

5.a

tk mk nha

1A

2C

3B

4B

5A

\(4y-y^2-x^2+6x-14\)

\(=-\left(y^2-4y+4+x^2-6x+9+1\right)\)

\(=-\left[\left(y^2-4y+4\right)+\left(x^2-6x+9\right)\right]-1\)

\(=\left[\left(y-2\right)^2+\left(x-3\right)^2\right]-1\)           ( 1 )

Ta  thấy \(\left(y-2\right)^2\ge0\forall y\) và \(\left(x-3\right)^2\ge0\forall x\)

\(\Rightarrow-\left[\left(y-2\right)^2+\left(x-3\right)^2\right]\le0\)

=> ( 1 ) \(\le-1\)

Vậy \(4y-y^2-x^2+6x-14\)luôn nhận giá trị âm

\(20-8x-x^2=-\left(x^2+8x-20\right)=-\left(x^2+8x+16-36\right)\)

\(=-\left(x+4\right)^2+36\)

=> Nó luôn dương nha .

ta co:|x-3|-|5-x|\(\le\)0\(\Rightarrow\)maxbt=0\(\Leftrightarrow\)\(\hept{\begin{cases}\\\end{cases}}\)x-3=0suyrax=3

                                                                                 5-x=0suy ra x=5

1. mk bias Jungkook

2. mk là ARMY được gần 1 năm òi

3. V - Jungkook - Suga - Jin - Jimin - J-hope - RM

1.bias Taehyung

2.ARMY 1 năm thôi

3.Taehyung  Jungkook   Suga   Jimin   Jin   Jhope    Rapmon