Which of the following questions is answered according to the information given in the passage？
A. What is the toxin used by the fish killer？
B. Who first discovered the organism？
C. How does the fish killer paralyze fish？
D. How many fishes can the organism kill each day？
查看答案
As mentioned in Paragraph 3, tobacco companies in the U. S. began marketing______ in the 1970s.
A. high-class cigarettes
B. low-class cigarettes
C. light cigarettes
D. low tar brands
听力原文：What's the date today？
(12)
A. It's Thursday.
B. It's April 15.
C. In the evening today.
What is the main idea of the passage？
A. The typical process of Yoga.
B. The medical benefits of Yoga.
C. The best way to do Yoga.
D. The relationship between health and Yoga.
Castle Rock is situated in
A. Scotland.
B. England.
C. Ireland.
D. Wales.
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