UNIT 3 ( CONTINUED ) PERIOD 18

4, She has to do a lot of homework everyday. (must)IV,Read the following passage, and answer the questions (2m) ( Đọc đoạn văn sau, và trả lời các câu hỏi ) On March 3

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, 1847, Alexander Graham Bell was born in Edinburgh. He was a Scotman although he later emigrated, first to Canada and then to the USA in the 1870s. In America, he worked with deaf-mutes at Boston University. Soon, Bell started experimenting with ways of transmitting speech over a long distance. This led to the invention of the telephone. Bell and his assistant, Thomas Watson first introduced the telephone in 1876, and by 1877 the first telephone was in commercial use.* Questions: