Câu 2: What we know about certain diseases are still not sufficient to prevent them from spreading easily among the population.
A B C D

Televisions are now an everyday feature of most households in the United States, and television viewing is the number of one activity leisure.

Almost poetry is more enjoyable when it is read aloud.

Question 2: Doing regular exercise can keep you in shape, improve your health, and reducing stress.

Mark the letter A, B, C or D to indicate the underlined part that needs correction in each of the following questions.
Question 32. She has disappeared three days ago, and they are still looking for her now.

Question 33. Ozone has his origin in a number of sources, a prime one being the automobile engine.

Question 34: After going through a protection period that may last from several months to a year, new recruits will be offered a long-term contract.