chia động từ trong ngoặc:

1.tourists could see fish (swim) along the brook

2.we enjoy(swim) along this river

dùng đại từ quan hệ:

1.i was looking for a book this morning.i've found it now

2.i don't know the name of the woman.i spoke to her on the phone

3.we often go to visit our friends in Bristol.it's only 30 miles away

4. there are many hotels.tourist can enjoy their holidays there.

5.india is a country.the earthquake occured in this country lasth month

cho a,b >0 và a+b=1.cmr

\(\dfrac{1}{ab}+\dfrac{1}{a^2+b^2}\ge6\)

cho a,b,c là độ dài ba cạnh của tam giác có chu vi 2p.cmr:

\(\dfrac{1}{p-a}+\dfrac{1}{p-b}+\dfrac{1}{p-c}\ge2\left(\dfrac{1}{a}+\dfrac{1}{b}+\dfrac{1}{c}\right)\)

cho a,b,c>0. cmr:

\(\dfrac{1}{a}+\dfrac{1}{b}+\dfrac{1}{c}\ge\dfrac{9}{a+b+c}\)

cho x,y,z > 0 và x+y+z=1

cmr: \(x+y\ge16xyz\)

cho \(a,b,c\ge0\)và a+b+c=1.

cmr: \(a+2b+c\ge4\left(1-a\right)\left(1-b\right)\left(1-c\right)\)