ko có lỗi sai

ko có lx

bafi1 : chọn lỗi sai và sữa ( mỗi câu có 1 lỗi sai )

1.you should try your best learning->to learn hard to pass the exam.

2.the write the meaning of new words by->in their mother tongue.

3. Not only the bathroom was flooded, and->but also the rest of the house.

bài 2 : điền giới từ

should learn ...by..... heart these new words.

bài 3 : write a letter to friend using the words below

a. i received a letter yesterday.

b. I am glad that you are well. I am fine too

c.I got school report last week

d.I had good grades in History and english but math result was bad

e.teacher asked me to improve it next sxhool year

f. i am looking forward to hearing news from you soon

Tìm lỗi sai:

Tìm lỗi sai:

"There is seven killers in the world.

Lỗi sai: is => are

is -> are

"There is seven killers in the world."

lỗi sai: is

sửa: is => are

what've -> what's 

happend -> happened

what've -> what's 

happend -> happened!(chắc v á sai đừng chửi tui :<

cho mình xin câu hỏi ạ

câu hỏi đâu ạ?

Do lỗi hiển thị nên nó không hiện ra rồi ;-;

Vì x^2 >= 0 => x^2+1 > 0 

Mà (x^2+1).(x^3+27) = 0 => x^3+27 = 0 

=> x^3 = -27 = (-3)^3

=> x = -3

k mk nha

\(\left(x^2+1\right)\left(x^3+27\right)=0\)

\(\Leftrightarrow\orbr{\begin{cases}x^2+1=0\\x^3+27=0\end{cases}}\)

\(\Leftrightarrow\orbr{\begin{cases}x^2=-1\left(L\right)\\x^3=-27=\left(-3\right)^3\Rightarrow x=-3\end{cases}}\)

\(\left(x^2+1\right).\left(x^3+27\right)=0\)

\(\Leftrightarrow\orbr{\begin{cases}x^2+1=0\\x^3+17=0\end{cases}}\)

\(\Leftrightarrow\orbr{\begin{cases}x^2=-1\left(loai\right)\\x^3=-27\end{cases}}\)

\(\Leftrightarrow x^3=\left(-3\right)^3\)

\(\Leftrightarrow x=-3\)

Rất vui vì giúp đc bạn <3

đúng r nha

Câu 7 sai 

we have a manment. sửa thành: We have a man

Would you like some fiesz sửa thành: Do you want some fiesz

What arie they doings? sửa thành: What are they doing?

Yes, pleases. sửa thành: Yes, please.

* Cho mình 1 tick xanh nếu đúng nhé

We have a man

Would you like some friend

What are they doing

Yes please

we have a moment

would you like some fried?

what are they doing?

yes, please

Bạn chọn cả cụm the most long -> the longest bạn nhé

ukm nhỉ

thanks bạn nhé!