Tính các biểu thức sau:  D = 2 3 − 1 2 . 1 4 , E = 2 3 − 1 2 . 1 4 , F= 3 4 − 1 − 2 . 4 6 − 1 3

Read the following passage and mark the letter A, B, C, or D to indicate the correct answer to each of the question.

The day after Thanksgiving is the start of the holiday shopping season. Thanksgiving is always on a Thursday, so the day after is a Friday. This day has come to be known as Black Friday. It has been the busiest shopping day of the year since 2005.

Most stores offer great deals on Black Friday. They open their doors in the wee hours of the

morning. They try to attract shoppers with big discounts. Some items like TVs are much cheaper than usual. Stores may even lose money on these items. They hope that shoppers will buy gifts for other people while they are in the store.

Black Friday is a great time to get good deals. The problem is that there are not enough low-priced items to go around. Each store may only have a few. These items are in high demand. People stand in long lines to get such great deals. They may line up hours before a store opens. They may be hoping to get a low price on a TV or laptop, but not everyone who wants one will get one. Some people leave disappointed. The situation can be tense. Some Black Friday events have been Violent. Large, eager crowds have trampled workers. Fights have broken out or people have been cutting in line. People have shot one another over parking spots. But most Black Friday events are safe and fun. Still, if you plan on going, expect large crowds and a bit of shoving.

Which is NOT true about Black Friday?

A. Black Friday is always the day after Thanksgiving.

B. Black Friday is the busiest shopping day of the year.

C. Black Friday is a national holiday.

D. Black Friday has been a little dangerous and uncomfortable.

Read the following passage and mark the letter A, B, C, or D to indicate the correct answer to each of the question.

The day after Thanksgiving is the start of the holiday shopping season. Thanksgiving is always on a Thursday, so the day after is a Friday. This day has come to be known as Black Friday. It has been the busiest shopping day of the year since 2005.

Most stores offer great deals on Black Friday. They open their doors in the wee hours of the

morning. They try to attract shoppers with big discounts. Some items like TVs are much cheaper than usual. Stores may even lose money on these items. They hope that shoppers will buy gifts for other people while they are in the store.

Black Friday is a great time to get good deals. The problem is that there are not enough low-priced items to go around. Each store may only have a few. These items are in high demand. People stand in long lines to get such great deals. They may line up hours before a store opens. They may be hoping to get a low price on a TV or laptop, but not everyone who wants one will get one. Some people leave disappointed. The situation can be tense. Some Black Friday events have been Violent. Large, eager crowds have trampled workers. Fights have broken out or people have been cutting in line. People have shot one another over parking spots. But most Black Friday events are safe and fun. Still, if you plan on going, expect large crowds and a bit of shoving.

According to the text, why do stores set prices so low on so they lose money?

A. They want people to enjoy the holidays.

B. They hope people will buy other gifts while they are in the store.

C. They are in a giving mood because the holiday season is just beginning.

D. They are trying to get rid of old items from last year to make room for new items.

Mark the letter A, B, C, or D to indicate the sentence that is closest in meaning to each of the following questions.

He finds physics far more difficult than other science subjects.

A. He finds physics is the most difficult science subject.

B. He finds that no other science subject is as difficult as physics.

C. He finds physics as difficult as other science subjects.

D. He finds no other science subject is as difficult as physics.

Tìm x khi:

1/3 - 1/12 - 1/20 - 1/30 - 1/42 - 1/56 - 1/72 - 1/90 - 1/110 = x - 5/13

Read the following passage and mark the letter A, B, C, or D to indicate the correct word or phrase that best fits each the numbered blanks.

As William Chopik, associate professor of psychology and author of the study says: “Friends are a conscious choice. Family relationships can be serious, negative and monotonous." The research included two studies - one a broad survey of nearly 300,000 people, aged between 15 and 99, from more than 90 countries. This study found that those (25) ______valued friendships highly were healthier and happier (according to their own reports), especially as they got older. The second study used data from a US survey of 7,481 people over 50. Subjects were questioned about the quality of their friendships - how much friends understood them and how much they let them down.

        When friendships were reported as being stressful, people reported (26) ______        rates of disease. When friends were supportive, people were healthier. Most of the friendships were reported as being supportive. Family, (27) ______, were found to have little influence on an individual's health and wellbeing. Spouses and children had some effect, but not as much as friends.

Chopik says he isn't suggesting we ignore our families, but that friends make us feel better. With friends you are more likely (28) ______do activities - they provide an outlet. You can say things to friends and they are less judgmental. There is a distance there that provides a level of honesty." He says that cultivating good-quality friendships across our lives is beneficial - raising self-esteem and (29) ______against stress.

Điền vào ô 29.

A. reducing

B. causing

C. placing

D. buffering

Different  activities  should  be  carried  out to raise______awareness of our people about  ecotourism.

A. a

B. an

C. the 

D. 0

Tìm một số tự nhiên biết rằng nếu đem số đó cộng thêm 15 thì cũng bằng tổng của 23 và 32.

a ) Tính độ dài cạnh huyền của một tam giác vuông cân biết cạnh góc vuông bằng 5 cm  b) Tính độ dài cạnh góc vuông của một tam giác vuông cân biết cạnh huyền bằng  2 2

Tính: a) (-17) + 21 + 79 +17; b) 40 + 22 + ( - 16) + ( - 44) c) (-12) + (- 47) + (-28) + 47; d) ( -5) + (-3) + 35 + (-17)