优优班--学霸训练营 > 知识点挑题
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            • 1. The little boy found_______ interesting_______ out those difficult Math problems.(  )
              A.it; to work
              B.it was; work
              C.that; working
              D.it's; to work
            • 2. We found      necessary to protect the environment.(  )
              A.it
              B.this
              C.that
              D.what
            • 3. Sometimes parents find ______ hard to communicate with their children.(  )
              A.this
              B.that
              C.it
              D.one
            • 4. I thought _______ very useful to know the customs of foreign countries.(  )
              A.that
              B.to coming
              C.it
              D.to go
            • 5. -________ English movies is helpful to learn English.
              -But I find _______ hard to understand when the people speak fast.(  )
              A.Watching,that
              B.Watch,it’s
              C.Watching,it
              D.Watching,its
            • 6. More and more people found _________ necessary to have a balanced diet.(  )
              A.it
              B.that
              C.this
              D.it’s
            • 7. After visiting different countries,I found _______ very important to learn about table manners.(  )
              A.it
              B.that
              C.this
              D.us
            • 8. Did you find           very interesting to play volleyball?(  )
              A.this
              B.that
              C.it
            • 9. Li Lei realized __________ necessary for him to get up early to do some exercise for he found he was getting fatter and fatter.(  )
              A.it
              B.that
              C.one
              D.this
            • 10. -More and more people think              necessary to let the students teach themselves.
              -That's true.They can improve themselves in this way.(  )
              A.it has
              B.it
              C.that
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