When did scientists discover that oysters were in danger?
B
Theo thông tin trong bài “Until recently; the supply of wild oysters and those crudely farmed were more than enough to satisfy people's needs. But today the delectable seafood is no longer available in abundance. The problem has become so serious that some oyster beds have vanished entirely”® các nhà khoa học phát hiện rằng loài hàu đang gặp nguy hiểm ở trong đầu thế kỷ này.
Which of the following is NOT a result of the formation of ocean ice?
The word “bore” in line 3 is closest in meaning to which of the following?
In line 7, when the author states that the owners "anxiously watch the sky" there is the implication that the owners
Which of the following statements about the salinity of a body of water can best be inferred from the passage?
Which of the following can be inferred about the order in which Kentucky, Tennessee, and Vermont joined the Union?
In the author's opinion, the importance of coal-generated electricity could increase in the future for which of the following reasons?
According to the passage, what happens to homing pigeons when they are about a month old?
In line 6, the word “further” is closest in meaning to which of the following?
According to the passage, how does the stick caterpillar make itself look like a twig?
Which of the following best describes the organization of the passage?