72. Which of the following groups doesn’t belong to the same category?

73. All remarks should be addressed to the       .

74. It’s an untamed monkey. Keep it on a       or it may attack others.

75. _____ ! You have at last passed PETS III before you graduate from middle school.

76. I have no       about me now. Let’s go to a bank nearby for the big note .

77. Please take a chair and listen to me carefully. We can also use _____ instead of the underlined word.

78. Last Sunday I met my first teacher by      in a minibus, which is beyond my expectation.

79. Before there goes the bell for class, our math teacher took out a piece of       and wrote his problems on the blackboard.

80. We all don’t like the boy for his miser(吝啬), but he has the ______ actively to get near us because he has no little friends to play together with.

81. ________is a kind of food made from milk curds.