37. According to the passage, when was the first Festival held to celebrate Calder's work? (A) May 1989. (B) August 1980. (C) July 1969. (D) June 1970.

47. Which of the following is NOT true according to the passage? (A) The U.S. economy continues to grow strongly; China has slowed down. (B) Earlier than China, the U.S. imposed a tariff of Chinese goods. (C) China responded with similarly sized tariffs on US products. (D) January 2018, the U.S. imposed a tariff to solar panels.