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            • 1.

              In the past, people had to write letters to their friends and wait for weeks for a reply. Instant messaging services are on the rise and here to say, allowing us to communicate with others anytime, anywhere.

              Gone are the days ______ people had to write letters to their friends and wait for weeks for a reply. Instant messaging services are on the rise and here to say, ______ ______ ______for us to communicate with others anytime, anywhere.

            • 2.

              The burning of coal not just consumes the oxygen in the house , it also gives out poisonous gases.

              The burning of coal ______  ______ consumes the oxygen in the house , it also gives out poisonous gases.  

            • 3.
              Professor Li said , “I did some research in this field yesterday . ”

              Professor Li said that _____ _______ ______some research in ______ field ______ _______ ______.

            • 4.

              Olympics Games take place every four years.

              Olympics Games take place ________ ________ _______.

            • 5.

              The more books a student reads , the better.

              A student _____ read _____ many books.

            • 6.

              In the 1950s the Chinese government introduced simplified Chinese characters and now they have widespread use in China’s mainland.Simplified Chinese characters _______ by the Chinese government in the 1950s are now _______ used in China’s mainland.

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