Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.

The (A) discovery of penicillin in 1928 (B) has not produced antibiotics (C) usefulfor the treatment of (D) infectious diseases until 1940.

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 from 31 to 35.

The term "virus" is derived from the Latin word for poison or slime. It was originally applied to the noxious stench emanating from swamps that was thought to cause a variety of diseases in the centuries before microbes were discovered and specifically linked to illness. But it was not until almost the end of the nineteenth century that a true virus was provento be the cause of a disease.

The natureof viruses made them impossible to detect for many years even after bacteria had been discovered and studied. Not only are viruses too small to be seen with a light microscope, they also cannot be detected through their biological activity, except as it occurs in conjunction with other organisms. In fact, viruses show no traces of biological activity by themselves. Unlike bacteria, they are not living agents in the strictest sense. Viruses are very simple pieces of organic material composed only of nucleic acid, either DNA or RNA, enclosed in a coat of protein made up of simple structural units. (Some viruses also contain carbohydrates and lipids.) They are parasites, requiring human, animal, or plant cells to live. The virus replicates by attaching to a cell and injecting its nucleic acid.’ once inside the cell, the DNA or RNA that contains the virus' genetic information takes over the cell's biological machinery, and the cell begins to manufacture viral proteins rather than its own.

Câu 31: Before microbes were discovered it was believed that some diseases were caused by____________.

Students can_____________a lot of information just by attending class and taking good notes of the lectures.

_____________summer I spent in_____________USA was one of_____________best in my life.

Her talent and experience_____________her to the respect of her colleagues.

Let's go swimming, _____________?

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.

It was so hot on the bus Lucy thought she was going to faint.

Minh: "Can I bring a friend to your birthday party?" - Hoa:" ____________."

If the business was bad, we would have to_____________some of our staff.

The dovernment have tried to_____________the price of petro, but they failed.

The boss completely deceived him.

_____________flowers are usually made of plastic or silk.

_____________the company, I'd like to thank you for your help.

Because the jury had reached a deadlock, the judge called for a retrial.

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.

Sarah's predominant features, what you first noticed about her, were her stunning black hair and big, dark eyes.

The film was so_____________that many viewers cried.