Hòa tan 34 g AgNO3 vào nước để tạo thành 100 ml dung dịch . Tính Cm dd thu được ? cho Ag=108, N=14, O=16

Một dung dịch H2SO4 có nồng độ 14%. Tính khối lượng H2SO4 có trong 150g dung dung dịch?

hào tan 10g KNO3 vào 150g nước. Tính nồng độ % của dung dịch

1.     He doesn’t work in a comfortable room.

" He wishes ............................................................................................................................

2.     My mother can show a new plan at the company.

" A new plan ............................................................................................................................

3.     The last time she saw him was two days ago.

" She has ............................................................................................................................

4.     My sister is eager to hear from her close friend.

" My sister is looking ............................................................................................................................

Read the passage and then decide whether the statements that follow are True or False

A. School children are not the only ones required to wear uniforms, many adults also wear uniforms to work. Wearing a uniform helps one to identify him or her with a particular organization. A schoolboy wears his uniform so that people know which school he goes to. In our modern society, people wear different types of clothes with matching accessories on different occasions. Usually, men put on either long-sleeved or short-sleeved shirts or trousers. Women normally wear dresses or blouses and skirts. However, it is common to see women in pantsuits too.

1.     School children are the only ones who wear uniforms.                                                                                                                                   .......

2.     Wearing uniforms helps people to identify what his name or her name is.                                                                                                      .......

3.     People can wear many sorts of clothes on different chances.                                                                                                                         .......

4.     Wearing pantsuits is normally done for women.                                                                                                                                               .......

Read passage again and choose the best answer (A, B, C or D) (0.5pt)

5.     What is the main idea of the text?

     A. Wearing uniforms for men                        B. Wearing uniforms for women

     C. Wearing uniforms                                    D. Wearing uniforms for children

6.     The word “required” in the first line refers to:

     A. forced                   B. wanted                              C. suggested                D. invited

Every year, millions of tourists (21) _______ California. California is known for its beautiful scenery, warm (22) _______, and excellent food. There are twenty (23) _______ parks in California. They are visited by over 30 million people every year. Many world-famous museums are located here. The state is divided into two parts. San Francisco is a city with a beautiful bay and several bridges. Its streets are always filled (24) ________ tourists. Los Angeles, Hollywood and Disney land are (25) _______ in Southern California, one of (26) _________ places in the world where you can ski in the morning and surf in the afternoon.

1.     A. come                       B. visit                         C. arrive                      D. travel

2.     A. climate                     B. season                     C. park                         D. trip

3.     A. international             B. compulsory               C. separated                D. national

4.     A. out                            B. in                             C. with                          D. of

5.     A. designed                   B. found                        C. named                     D. communicated

6.     A. the any                     B. the lots                     C. the few                     D. the lot of

1.     / of its people. / really impressed / of the city / Maryam was / and by the friendliness / by the beauty /

................................................................................................................

2.     / used for men / and material / for women. / were different / The design / from those used /./

................................................................................................................

1.     My father gave me a clear instruction __________________. (persuasion)

2.     Because our relatives live far away our family, we have _________ together. (correspondence)

1.     My father gave me a clear instruction __________________. (persuasion)

2.     Because our relatives live far away our family, we have _______________ together. (correspondence)

3.     Buddhism is one of the national ______________ in Viet Nam/ (religious)

4.     Our __________________ has been for twenty years. We are always proud of it. (friend)

5.     My uncle felt ________________ with what his son did. (disappointment)

6.     His boss treated _______________ to his workers, so many of them gave up their job. (equal)

1.     “How can you get there?” – “ _________”.

A. In a car                     B. On foot                     C. By feet                     D. With a bike.