短文改错

May I have you attention please? I have a few      76. _________

things to tell you. When you have a class here in the                     77. _________

language lab, please be here a little early. Change       78. _________

your shoes before enter the lab. Don't bring anything         79. _________

here except your text books. When you are into,       80. _________

please don't touch these machine without permission.   81. _________

Always do as the teacher tell you to. In class you        82. _________

should only speak the English, not Chinese. Recorders        83. _________

can be used make a copy of the listening materials.       84. _________

When class over, turn off your machines and leave       85. _________

the lab one by one.

答案：

76.you→your    77. √      78.early→earlier       79.enter→entering或enter前加you      80.into→in

81.machine→machines        82.tell→tells       83.去掉the      84.to∧make          85.is∧over