Toefl Junior Language Form and Meaning Sample Questions 2

8/21/2019 8:48:06 PM
Một bài mẫu (độ khó: B1) cho dạng bài chọn từ cho mỗi chỗ trống của một đoạn văn, trong phần thi Language Form and Meaning của Toefl Junior. Nguồn: ExamEnglish.

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The first radio signals were sent twenty years after . The first person such signals was the Italian Guglielmo Marconi. His first radio transmissions were only sent about one mile, but Marconi that the technology had great potential. He approached the Italian government with his invention. However, the Italian government turned it down, Marconi moved to England to continue his experiments. In 1899 he opened his first radio factory, and two years, he had established a radio link between Britain and the USA. However, Marconi’s ‘wireless telegraph’ only signals in the form of Morse code or ‘dots and dashes’. These transmissions were useful for communication between ships but were the radio broadcasts we hear today. Voices were not heard over the radio 1921.