Do You Love Me, cậu hơi nặng lời quá rồi đấy!

1)

\(\dfrac{0,375-0,3+\dfrac{3}{11}+\dfrac{3}{12}}{-0,625+0,5-\dfrac{5}{11}-\dfrac{5}{12}}+\dfrac{1,5+1-0,75}{2,5+\dfrac{5}{3}-1,25}\)
\(=\dfrac{\dfrac{3}{8}-\dfrac{3}{10}+\dfrac{3}{11}+\dfrac{3}{12}}{-\dfrac{5}{8}+\dfrac{5}{10}-\dfrac{5}{11}-\dfrac{6}{12}}+\dfrac{\dfrac{3}{2}+\dfrac{3}{3}-\dfrac{3}{4}}{\dfrac{5}{2}+\dfrac{5}{3}-\dfrac{5}{4}}\)
\(=\dfrac{3\left(\dfrac{1}{8}-\dfrac{1}{10}+\dfrac{1}{11}+\dfrac{1}{12}\right)}{-5\left(\dfrac{1}{8}-\dfrac{1}{10}+\dfrac{1}{11}+\dfrac{1}{12}\right)}+\dfrac{3\left(\dfrac{1}{2}+\dfrac{1}{3}-\dfrac{1}{4}\right)}{5\left(\dfrac{1}{2}+\dfrac{1}{3}-\dfrac{1}{4}\right)}\)
\(=\dfrac{3}{-5}+\dfrac{3}{5}\)
\(=-\dfrac{3}{5}+\dfrac{3}{5}\)
\(=0\)

1.does phong's school have forty classroom ?

-are there forty classroom in Phong's school?

2.phương has a brother ,nam .

-phương is Nam's sister.

3.my father usually drives to work.

-my father usually goes to work by car.

4.this house is small

-it is a small house.

5.the bookstore is to the right of thetoystore

-the toystore is to the left of the bookshop.

Ai nói với cậu là thi xong thì được spam? Hè cũng học chứ!

Phía sau chữ '' so '' phải có be + S2 ( be chia theo S2 )
Cần phải biết S2 là ai thì mới điền được, OK?

a)
\(a< b\Leftrightarrow a.n< b.n\) ( Vì \(a\in Z;b\in\) N*\(;n\in\) N* )
\(\Leftrightarrow ab+a.n< ab+b.n\)
\(\Leftrightarrow a\left(b+n\right)< b\left(a+n\right)\)
\(\Leftrightarrow\dfrac{a}{b}< \dfrac{a+n}{b+n}\) ( đpcm )
Vậy........
b)
\(a>b\Leftrightarrow a.n>b.n\)
\(\Leftrightarrow ab+a.n>ab+b.n\)
\(\Leftrightarrow a\left(b+n\right)>b\left(a+n\right)\)
\(\Leftrightarrow\dfrac{a}{b}>\dfrac{a+n}{b+n}\) ( đpcm )
Vậy.........
c)
\(a=b\Leftrightarrow a.n=b.n\)
\(\Leftrightarrow ab+a.n=ab+b.n\)
\(\Leftrightarrow a\left(b+n\right)=b\left(a+n\right)\)
\(\Leftrightarrow\dfrac{a}{b}=\dfrac{a+n}{b+n}\) ( đpcm )
Vậy............

1. I'll need ...a little... time to think about it.

2. We can have ...little.. wine with the cheese.

3. .. A few ... friends of ours are coming to dinner this evvening.

4. I've got ..a few..... things to do before I go away on business.

5. There are only .few... students in the evening class toningt

6. We've got ...a little.... time. Let's have some drink.

7. Would you like some milk? Yes, please. Just .. a little...

8. Very ...few.... people come to hear him play the piano because they are too busy.

Nói cái gì được ?