Cân = phương trình.

1. Fe+H₂SO₄------->Fe₂(SO₄)₃+SO₂+H₂O

2. Fe+HNO₃------->Fe(NO₃)₃+NO₂+H₂O

làm giúp vs

1. Don't worry about us. We can __________ourselves.

A. look B. look for C. look after D. look at

2. Please answer the phone when it _____________.

A. is ringing B. ringing C. rang D. rings

3. I can't stand Jack. He__________always_________his dirty dishes on the table.

A. does/leave B. has/left C. is/leaving D. was/leaving

4. Don’t touch that chair. It _____________

A. was painted B. is being painted C. is painted D. has just been painted

5. Why don’t you ___________ your hat? It’s sunny today.

A. put on B. put out C. take off D. take on

6. I ‘m delighted _________ you passed your exam.

A. that B. to C. in order to D. so that

7. The flight __________ at 6.00 has been delayed.

A. leave B. leaves C. leaving D. left

8. Some of the products are at cheaper....................

A. prices B. costs C. prizes D. charges

9. If you want any further information please ....................the head-office.

A. relate B. contact C. connect D. combine

10. The bus service is free in the evenings and ____________the weekends.

A. in B. on C. at D. B and C are right

WHO IS REALLY ON THE INTERNET?

One of the great things about the Internet, as well as one of its biggest problems, is
that people are basically anonymous on it. In Internet chat rooms and web cafés, people
can use a different name and even create an entirely different identity if they want to.
In some ways, this is a good thing. For many people, it gives them the chance to
do things that they could never do in real life. For example, a person might be very shy in
real life, but that same person may find the courage to make friends on the Internet
because it feels safer. In addition, people in some countries are not free to express their
opinions, especially if they don‟t like the government. By using a different identity on the
Internet, they can express their opinions without worrying about getting in trouble.
That same freedom to be “another person” on the Internet, however, causes many
problems as well. The major problem is Internet fraud. Many dishonest people use the
Internet to pretend to be a different person. Then they trick a person into trusting them in
some way and take their money. In one case, two Japanese men lied to Filipinos who
wanted to travel to Japan. The two Japanese men told them that they could help them get
visas to Japan for a small price (about $ 400 per person). The two Japanese men took
thousands of dollars from hopeful Filipinos, but none of the people ever got their visas.
The number of these kinds of crime is quickly rising. Last year, Internet criminals stole
over $ 350 million from trusting people. When you consider that only $ 57 million was
stolen in bank robberies in all of Europe, it is easy to see that Internet crime is a serious
problem.

1. The word 'anonymous' in bold in paragraph 1 is closest in meaning to________.

A. nameless B. dishonest C. trusting D. criminal

2. According to paragraph 2 all of the following are true of the Internet EXCEPT_________.

A. it allows people to safely oppose their government.

B. it makes it easier for people to express themselves

C. its get people in trouble

D. it helps shy people make friends

3. They word 'they' in bold in paragraph 2 refers to__________.

A. people B. countries C. opinions D. friends

4. The author mentions two Japanese men in oder to__________.

A. suggest that there is a lot of Internet crime in Japan.

B. show that getting a visa is very difficult in Japan.

C. show that you shouldn't trust anyone on the Internet.

D. give an example of fraud on the Internet.

5. Why does the author mention bank robberies?

A. To show that there is more money in Internet crime than in robbing banks.

B. To suggest that Internet crime is easier than robbing banks.

C. To show that Internet crime is much more common than other types of crime.

D. To show that banks are safe than the Internet.

Viết cả đề này = cả tối mong mn làm giúp

1. Nam/spend/free time/play soccer.

2. When/we/children/we/used/listen/grandna's old folktales/dinner.

3. You/can/tell me/best ways/learn new word?

4. Lan/like/cook/meals/but/not like/ washing up.

5. rother/ very good/ repair/ household/ appliances.

1.It took two days to drive from Ha Noi to HCM city.

-> It was.......................................................

2. Lan forgot her birthday and so did I.

-> Lan didn't.................................................

3. He doesn't play football any more.

->He used.....................................................

4. The exercise was so difficult that Nam couldn't do it.

->The exercise was too................................

Lam giup :))))))))))))))))))))))))))))))))))))))

Read the passage carefully and choose the best option a, b, c , or d

Mr and Mrs Gray live in a big city, and they (1)……a son. His name is Peter, and he doesn’t like (2)…… . One day, Mrs Gray said (3)……her husband, “Living in the city all the time isn’t good (4).......... Peter’’. So last summer they found a small house in the country and took Peter(5)………for a vacation.

When they arrived (6)……the house, Mrs Gray said to Peter,”We are going to stay(7)…… for two weeks.”

The boy ran (8)……the house and looked in all the rooms, and he ran back to (9)........ mother and said to her, “ I haven’t found the bathtub, Mom. Where is it?”

“This is a (10)…........small house, Peter,” his mother said“This is going to be a very nice vacation.”

Làm cho mik vs

Dùng từ gợi ý để viết thành câu hoàn chỉnh.

1.The toy car/ make/China/be/not/expensive.

2. The road /join/two/villages/be/not/wide.

3. This table/big/as/that one.

4.What/deliver/to/people/by/radio/television?

5. My sister/good/at/English/your/sister.

Làm cho mik vs.