We need _______ actions and interventions of the local authorities to prevent national parks from being destroyed by pollution. 

A. timely 

B. excitedly 

C. reckless 

D. threateningly 

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

The car was very expensive and he couldn’t afford it

A. The car was very expensive so that he couldn’t buy it.

B. The car was too expensive for him to buy

C. He was rich enough to buy the car

D. He was so poor but he bought the car

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following question.

The course was so difficult that I didn’t ______ any progress at all.

A. do

B. make       

C. produce   

D. create

Dùng điều kiện a + b + c = 0 hoặc a – b + c = 0 để tính nhẩm nghiệm của mỗi phương trình sau:

35x2 – 37x + 2 = 0

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word for each of the blanks

Parents whose children show a special interest in a particular sport have a difficult decision to (47)______ about their children‟s career. Should they allow their children to train to become top sportsmen and women? For many children it (48) ______starting very young and school work, going out with friends and other (49) ______ have to take second place. It‟s very difficult to explain to a young child why he or she has to train for five hours a day, even at the weekend, when (50) _______ of his or her friends are playing.

Another problem is of course money. In many countries money for training is (51) ______ from the government for the very best young sportsmen and women. If this help cannot be given, it means that it is the parents (52) ______ have to find the time and the money to support their child‟s development- and sports clothes, transport to competitions, special equipment etc. can all be very expensive.

Many parents are understandably (53) _______ that it is dangerous to start serious training in a sport at an early age. Some doctors agree that young (54) _______ may be damaged by training before they are properly developed. Professional trainers, however, believe that it is only by starting young that you can reach the top as a successful sports person. What is clear is that very (55) _______ people reach the top and both parents and children should be prepared for failure even after many years of training.

Điền vào ô 53

A. distributed 

B. concerned 

C. cared 

D. worried 

Mark the letter A, B, Cor D on your answer sheet to indicate the correct answer to each of the following questions

The mass of the Sun is about 750 times _______ that of all the planets combined

A. the greatest 

B. as great as 

C. greatly 

D. greater 

Cho 0,14 mol một amin đơn chức tác dụng với dung dịch chứa 0,1 mol H₂SO₄. Sau đó cô cạn dung dịch thu được 14,14 gam hỗn hợp 2 muối. Thành phần phần trăm về khối lượng mỗi muối trong hỗn hợp là :

A. 44,90% và 55,10%.

B. 54,74% và 45,26%

C. 67,35% và 32,65%.

D. 53,06% và 46,94%.