1.How many benches are there ?

2.There are ten benches

3.There is an eraser on/under the table

4.There are any bookshelves in the room

5.There are two couches in the living room

xin lỗi bạn nha mình vừa mới lên Ket hihi

2a+2b=ab

<=>ab-2a-2b=0

<=>a(b-2)-2b+4=4

Swimming is one of the most popular sports in Australia. Our nation is surrounded by water and swimming is one of our great passions. As well as being fun, swimming is a great way to keep fit, stay healthy and make friends. Swimming is a healthy activity that you can continue for a lifetime. It is a low-impact activity that has many physical and mental health benefits.

Swimming is a great recreational activity for people of all ages. Recreational swimming can provide you with a low-impact workout and it’s also a good way to relax and feel good. Common swimming styles in recreational swimming are breaststroke, backstroke, side stroke and freestyle.

Some people who enjoy swimming want to take it to a competitive level. This can provide the health benefits of a vigorous workout as well as the fun and thrill of competition. The main strokes used in competitive swimming are breaststroke, freestyle, backstroke and butterfly. The distances swum in competition swimming can vary from 50 metres in a pool to much further distances in open water.

Swimming is a great workout because you need to move your whole body against the resistance of the water.

Swimming is a good all-round activity because it:

Swimming has many other benefits including:

Getting started in swimming is easy. It is a sport for all age groups, skill and fitness levels. Before you get started, you will need to purchase a pair of swimmers and some goggles. Goggles can be purchased for around $15 and upwards. 

There are public pools throughout Australia that are open to everyone. Entry to public pools usually costs a few dollars and many aquatic centres offer swimming lessons for people of all ages, as well as training and exercise groups. 

Before you dive in:

nhầm mình lộn đề

Nowadays, media development has many positive influences in human’s life. People have lots of sources to get information and take entertainment such as television, radio, Internet, etc. but nobody can deny the importance as well as the benefits of reading books.

First, reading books helps us widen our knowledge. Vietnamese has a proverb which means that we should travel to broad our understanding, if we always stay at home with our mother, we will never be wise. However, nowadays, not only does reading books costs less money but it is also more comfortable than taking a trip. We just lie on the couch and comprehensive what is happening in the books. Thanks to the wide range of books such as science, literature, astronomy, archeology, biology, physics, etc. we can get information focus on our own fields as well as the others. The more books we have read, the more knowing we have obtained.

Secondly, reading books helps us improve our expression ability like writing and speaking. The writing style of some our favorite writers will affect ours. Especially, when we read foreign literature, we will not only know more about that country but also have chance to improve our reading skill, learn new words which can be used to better our essays.

Last but not least, reading books helps us relax after a hard-working day. It is also an interest for everybody who does not like to visit crowded places at the weekend. They like quiet atmosphere and do not want to disturb anybody so they consider books as their close friend. They meet their stories, their lives in books and they feel extremely sympathetic with the characters’ situations. Reading books makes them happy and relieve stress.

In conclusion, reading books is so important and has many benefits. It not only help us become more clever but also bring us happiness. Therefore, everyone should be encouraged to read books as much as possible.