Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate correct word or phrase that best fits each of the numbered blanks. Fill in the appropriate word in question 55

             The first question we might ask is: What can you learn in college that will help you in being an employee? The schools teach (55) _______ many things of value to the future accountant, doctor or electrician. Do they also teach anything of value to the future employee? Yes, they teach the one thing that it is perhaps most valuable for the future employee (56)_______. But very few students bother to learn it. This basic skill is the ability to organize and express ideas in writing and in speaking. This means that your success as an employee will depend on your ability to communicate with people and to (57) _______ your own thoughts and ideas to them so they will (58) _______ understand what you are driving and be persuaded.

            Of course, skill in expression is not enough (59) _______ itself. You must have something to say in the first place. The effectiveness of your job depends (60) _______ your ability to make other people understand your work as they do on the quality of the work itself.

            Expressing one’s thoughts is one skill that the school can (61) _______ teach. The foundations for skill in expression have to be (62) _______ early: an interest in and an ear (63) _______ language; experience in organizing ideas and data, in brushing aside the irrelevant, and above all the habit of verbal expression. If you do not these foundations (64) _______ your school years, you may never have an opportunity again.

A. a great

B. large

C. a large

D. great

Cho các hóa chất: NH₄Cl, (NH₄)₂SO₄, KNO₃, NH₄H₂PO₄. Khi sử dụng các hóa chất này làm phân đạm, hóa chất nào có hàm lượng đạm cao nhất?

A. NH₄Cl

B. NH₄H₂PO₄

C. KNO₃

D. (NH₄)₂SO₄