HOC24
Lớp học
Môn học
Chủ đề / Chương
Bài học
Mark the letter A, B, C, or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges.
Daisy: “______?”
Mary: “No, that’s about it for now.”
A. Nothing to declare
B. When can we stop
C. Anything else
D. What’s on your mind
Cho các chất: metyl amin; anilin; fomanđehit; etyl amin; trimetyl amin; metanol; đimetyl amin; alanin. Có bao nhiêu chất ở thể khí điều kiện thường?
A. 5
B. 6
C. 4
D. 3
Mark the letter A, B, C or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.
Names of people in the book were changed to preserve anonymity
A. cover
B. conserve
C. presume
D. reveal
Đốt cháy hết 25,56 gam hỗn hợp X gồm hai este đơn chức là đồng đẳng liên tiếp và một amino axit Z thuộc dãy đồng đẳng của glyxin (MZ > 75) cần đúng 1,09 mol O2, thu được CO2 và H2O với tỉ lệ mol tương ứng 48 : 49 và 0,02 mol khí N2. Cũng lượng X trên cho tác dụng hết với dung dịch KOH, cô cạn dung dịch sau phản ứng được m gam rắn khan và một ancol duy nhất. Biết KOH dùng dư 20% so với lượng phản ứng. Giá trị của m là
A. 38,792.
B. 31,880.
C. 34,760.
D. 34,312
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 from 33 to 42.
Everyone wants to reduce pollution. But the pollution problem is (33)______ complicated as it is serious. It is complicated (34)______ much pollution is caused by things that benefit people. (35)______, exhaust from automobiles causes a large percentage of air pollution. But the automobile (36)______ transportation for millions of people. Factories discharge much (37)______ the material that pollutes the air and water, but factories give employment to a large number of people.
Thus, to end (38)_______ greatly reduce pollution immediately, people would have to (39)______ using many things that benefit them. Most of the people do not want to do that, of course. But pollution can be (40)______ reduced in several ways. Scientists and engineers can work to find ways to lessen the (41)______ of pollution that such things as automobiles and factories cause. Governments can pass and enforce laws that (42)______ businesses and traffic to stop, or to cut down on certain polluting activities.
Điền vào ô số 37
A. about
B. for
C. of
D. with
Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.
Do you ever wish you were more optimistic, someone who always (45)____ to be successful? Having someone around who always fears the worst isn't really a lot of (46)____ - we all know someone who sees a single cloud on a sunny day and says, 'It looks like rain.' But if you catch yourself thinking such things, it's important to do something about it.
You can change your view of life, according to psychologist. It only takes a little (47)___, and you'll find life more rewarding as a (48)____. Optimism, they say, is partly about self-respect and confidence but it's also a more positive way of looking at life and all it has to (49)____. Optimists are more (50)_____ to start new projects and are generally more prepared to take risks.
Upbringing is obviously very important in forming your (51)___ to the world. Some people are brought up to depend too much on others and grow up forever blaming other people when anything (52)____ wrong. Most optimists, on the (53)____ hand, have been brought up not to (54)____ failure as the end of the world - they just get on with their lives.
Điền vào ô 52
A. goes
B. falls
C. comes
D. turns
I can't tell Peter and Paul apart; they are _______ twins.
A. similar
B. alike
C. resemblance
D. identical
The success of a shared holiday depends on ______ you share it with.
A. who
B. whom
C. whose
D. that