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1. name/ your/ What/ is? = > What is your name?
1 _________How are you______________? Fine thanks.
2 __________How old are you_____________? I’m fifteen.
3 __________Where are you from_____________? London.
4 _________Have you got one brother_______? Yes, I’ve got one brother.
5 _______How old is he_______? He’s eighteen.
1, There are lots of mountains and rivers.
2, What is this building' s age?
3, It isn't quiet in the city.
1. There are a lot of mountains and rivers in our country.
2. What is the high of this building?
3. It isn't quite in the city.
1.What weather do you like ?
-I like rainy weather.
2.What do you do when it's hot?
-I eat ice-cream.
3.Which sports do you play ?
-I play table tennis.
4.What do you do in your freetime?
-I do some question of English.
1.
Being a volunteer is one of the best things you can do with your life. It's a great way to help the (1) _________ and other people. It's also very satisfying to know that you are not wasting your time and are helping people who need help. You can also take part in some (2) _________ organizations. I'm sure that so many volunteer organizations need extra hands. Everything you need to do is just pick up the phone and offer your services. I think too many of us settle into a lazy (3) __________. We just stay at home, play games or watch TV. Life is much more interesting when you're a volunteer. You can (4)__________ young children once a week, work in a charity shop or spend only one Saturday morning a month collecting rubbish in your neighborhood. It is so happy when we can make a (5) __________ in our community from such simple activities.
Bài 1 :
\(S=\frac{2}{1.2.3}+\frac{2}{2.3.4}+...+\frac{2}{2009.2010.2011}\)
\(=\frac{1}{1.2}-\frac{1}{2.3}+\frac{1}{2.3}-\frac{1}{3.4}+...+\frac{1}{2009.2010}-\frac{1}{2010.2011}\)
\(=\frac{1}{1.2}-\frac{1}{2010.2011}<\frac{1}{2}\)
Vậy \(S<\frac{1}{2}\)
Bài 2:
Làm nhiều rồi vào trong chỗ góc học tập của tớ mà coi
THANKS BN NHÌU