Class One was having a meeting. The students were having a     1     (discuss) in the classroom. What were they talking about? The topic was the best     2     /ɪnˈvenʃən / in our normal life.

Tom thought the clock was the most useful. It could tell the time exactly .    3    (with) the clock, we didn’t know when to leave for school. Maria showed us a     4     / 'kreɪən /on the desk. It could be used to draw beautiful pictures. So it was helpful. Peter preferred computers. He said that the world was     5     (connect) together by computers. We could get the information far away in a minute. There were also tiny computers inside the     6     (患者) bodies. These computers were used for treating illnesses. Lily was c    7     that the robots were important. The robots     8    worked in the factories helped people perform different tasks. It’s no doubt that all of above have    9     (change) our habits, they make us work and live more comfortably. Perhaps in the future we can invent something for     10    (us). I’m sure we have the ability to be a real inventor.