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Giúp em với ạ. Em cảm ơn11. We'll get home and then we'll have something to eat. got We'll have something to eat …………………………………………….. home.12. I'll finish marking the exams and then I'll tell you your results. soon I'll tell you your results ……………………………………………..finish marking the exams. 13. They'll show Titan at the cinema and then they'll release the DVD. until They won't release the DVD …………………………………………….. at the cinema. 14. I'll send out all the invitations before lunchtime. have By...
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Giúp em với ạ. Em cảm ơn

11. We'll get home and then we'll have something to eat. got 

We'll have something to eat …………………………………………….. home.

12. I'll finish marking the exams and then I'll tell you your results. soon 

I'll tell you your results ……………………………………………..finish marking the exams. 

13. They'll show Titan at the cinema and then they'll release the DVD. until 

They won't release the DVD …………………………………………….. at the cinema. 

14. I'll send out all the invitations before lunchtime. have 

By lunchtime, ………………………………………………………. all the invitations.

 15. Do some revision and then I'll give you a test. until

 I won't give you a test …………………………………………………. some revision. 

16. When you visit us, we'll have moved into our new house. by 

We'll have moved into our new house ………………………………….. you visit us. 

17. The food was so salty that we could not eat it. too 

The food was ………………………………………….. to eat. 

18. He drove too quickly for us to keep pace with. slowly 

He didn't ………………………………… for us to keep pace with. 

19. The child is too short to reach the ceiling. tall 

The child …………………………………to reach the ceiling. 

20. This place is too dirty for us to live in. clean  

This place ………………………………… for us to live in. 

2
8 tháng 12 2021

after having got 

as soon as you 

until they show Titan

I will have sent out

until you have done

by the time 

too salty for us 

drive slowly enough

is not tall enough

is not clean enough

 

8 tháng 12 2021

11. We'll get home and then we'll have something to eat. got 

We'll have something to eat ………when we get…………………………………….. home.

12. I'll finish marking the exams and then I'll tell you your results. soon 

I'll tell you your results ………as soon as I……………………………………..finish marking the exams. 

13. They'll show Titan at the cinema and then they'll release the DVD. until 

They won't release the DVD ……until they show Titan  ……………………………………….. at the cinema. 

14. I'll send out all the invitations before lunchtime. have 

By lunchtime, ……I will have sent out…………………………………………………. all the invitations.

 15. Do some revision and then I'll give you a test. until

 I won't give you a test ……until you do ……………………………………………. some revision. 

16. When you visit us, we'll have moved into our new house. by 

We'll have moved into our new house ……by the time …………………………….. you visit us. 

17. The food was so salty that we could not eat it. too 

The food was ………too salty for us………………………………….. to eat. 

18. He drove too quickly for us to keep pace with. slowly 

He didn't ……drive slowly enough …………………………… for us to keep pace with. 

19. The child is too short to reach the ceiling. tall 

The child ……is not tall enough……………………………to reach the ceiling. 

20. This place is too dirty for us to live in. clean  

This place ……is not clean enough…………………………… for us to live in. 

1 tháng 12 2021

The music which we are listening to sounds strange to us

24 tháng 3 2022

Đề

22 tháng 3 2022

Ai giúp em với ạ

a. Used       b. Played     c. Saved     d. Provided 
Gạch chân ở chữ ed ở 4 đáp án ạ
If we keep on .......polluting..... the air, We will don't have fresh air ....-gì gì đó-....

21 tháng 11 2021

\(a^3b-ab^3=ab\left(a^2-b^2\right)=ab\left(a^2-ab+ab-b^2\right)=ab\left(a-b\right)\left(a+b\right)\)

Với a hoặc b chẵn \(\Leftrightarrow ab\left(a-b\right)\left(a+b\right)⋮2\)

Với a và b lẻ \(\Leftrightarrow\left(a-b\right)⋮2\Leftrightarrow ab\left(a-b\right)\left(a+b\right)⋮2\)

Vậy \(ab\left(a-b\right)\left(a+b\right)⋮2,\forall a,b\left(1\right)\)

Với a hoặc b chia hết cho 3 thì \(ab\left(a-b\right)\left(a+b\right)⋮3\)

Với \(a=3k+1;b=3q+1\Leftrightarrow\left(a-b\right)=3\left(k-q\right)⋮3\)

\(\Leftrightarrow ab\left(a-b\right)\left(a+b\right)⋮3\)

Với \(a=3k+1;b=3q+2\Leftrightarrow\left(a+b\right)=\left(3k+1+3q+2\right)=3\left(k+q+1\right)⋮3\)

\(\Leftrightarrow ab\left(a-b\right)\left(a+b\right)⋮3\)

Mà a,b có vai trò tương đương nên \(ab\left(a-b\right)\left(a+b\right)⋮3,\forall a,b\left(2\right)\)

\(\left(1\right)\left(2\right)\Leftrightarrowđpcm\)

21 tháng 11 2021

Ta có : a3b -ab3 
=a3b -ab -ab3 +ab
=ab (a2 -1) -ab (b2 -1) 
=ab (a-1)(a+1) -ab (b-1)(b+1)
Vì a (a-1)(a+1) là 3 số tự nhiên liên tiếp nên chia hết cho 6 .Tương tự b (b-1)(b+1) cũng chia hết cho 6
=> a3b -ab3 chia hết cho 6 (đpcm )

 


 

12 tháng 7

16, a

17, a

18, d

19, a

20, b

21, c

28 tháng 4 2022

17 B: (động vật hoang dã)

19 A:(khí hậu mưa)

20 B(bị động và expect+to-v)

21 C(động lực)

10 tháng 12 2021

Are you sure we should do it?

10 tháng 12 2021

Are you sure we should do it?

3 tháng 8 2021

 \(=>Qthu1=0,2.340000=68000J\)

\(=>Qthu2=2100.0,2.20=8400J\)

\(=>Qtoa=2.4200.25=210000J\)

\(=>Qthu1+Qthu2< Qtoa\)=>đá nóng chảy hoàn toàn

\(=>0,2.2100.20+0,2.340000+0,2.4200.tcb=2.4200\left(25-tcb\right)\)

\(=>tcb=14,5^oC\)

3 tháng 8 2021

Cho em hỏi ngu tí ạ vậy tcb ở nhưng phép tính trên vứt đi đâu ạ