Plastic and rubber won’t _________ electricity,but copper will.
75. The young lady informed me that she was to send for the important computer materials _____ day.
74. --- Have you ever read that article? --- Yes, But I think there is nothing _______ in it. Which of the following is wrong?
73. Don' t be _________ at the examination, and believe that you can do well in it.
72. You can' t throw the waste everywhere. You should keep the classroom _________.
71. After all, not even _____ speakers of English find it easy to do some reading aloud correctly in RP(Received Pronunciation).