1.B

2.A

3.D

4.B

racket (s)

\(a.\dfrac{2}{-9}và\dfrac{8}{-9}\)

Ta có: \(\dfrac{-2}{9}và\dfrac{-8}{9}\)

vì -2 > -8 

-> \(\dfrac{2}{-9}>\dfrac{8}{-9}\)

\(b.\dfrac{-2}{5}và\dfrac{-3}{4}\)

Ta có: \(\dfrac{-2}{5}=\dfrac{-8}{20};\dfrac{-3}{4}=\dfrac{-15}{20}\)

Vì -8 > -15

=> \(\dfrac{-2}{5}>\dfrac{-3}{4}\)

\(\dfrac{2}{3}-\dfrac{5}{3}:x=\dfrac{3}{2}\)

\(\dfrac{5}{3}:x=\dfrac{2}{3}-\dfrac{3}{2}\)

\(\dfrac{5}{3}:x=\dfrac{4}{6}-\dfrac{9}{6}=\dfrac{-5}{6}\)

\(x=\dfrac{5}{3}:\dfrac{-5}{6}=\dfrac{5}{3}.\dfrac{6}{-5}\)

\(x=-2\)

You should not to go diving along because it's quite dangerous

3. Let's play footall this afternoon!

What about playing football this afternoon?

Why don't we play football this afternoon?

4. You should not play near the river

5. My school has not got any gym

6.My house is between a bookstore and shose store

7.What beautiful houses are!

How beautiful the house are!

8.He is the tallest student in my class

9.This pen belongs to me

10.Mai is Nam's elder sister

Nam is Hoa's younger brother