Плиз ответьте на вопрос: What did Bell say on the opening of the transcontinental telephone line?

1. Alexander Graham Bell was born in Edinburgh in 1847. His father
was a world-famous teacher of speech and the inventor of a system
which he called “Visible Speech”. It helped deaf persons to pronounce
words they could not hear. Alexander chose the same profession, and
became a teacher of the deaf, he moved to the USA and began to teach
deaf children to speak. At the same time he worked at improving his
father’s invention.
2. In 1866 the nineteen-year-old Bell started thinking about sending
tones by telegraph. In some time he arrived at the idea of the
“harmonic telegraph”, which would send musical tones electrically
from one place to another. So he had to give all his energy and time to
one thing only – knowledge of electricity.
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3. “We have to do something to make our telephone work better”, Bell
used to say. At last they decided to try a new kind of transmitter. The
new transmitter was set in Bell’s bedroom. Watson was sitting in the
laboratory. He put his ear to the receiver and was waiting. Suddenly
he heard Bell’s voice. And not the voice only but the words too, “Mr.
Watson, come here. I want you”. It was on the 10th of March, 1876.
Alexander Graham Bell invented the telephone. In a few years there
were telephones all over the world. In 1915 the first transcontinental
telephone line was opened. Graham Bell sat in New York at a desk
with a telephone before him, while his friend Watson was listening
more than three hundred thousand miles away in San Francisco.
4. Everyone expected to hear a serious, scientific speech. Suddenly
everybody heard his clear voice as he spoke into his old transmitter,
“Mr. Watson, come here. I want you”. He repeated the words which
he had said almost forty years before. Watson answered, “I would be
glad to come, but it would take me a week”.