-----What is the noise?-----Oh, I forgot to tell you. The new machine _________.
81. Our cadres, whether high or low in their official rank, are the people’s public servant and _____workers.
80. Materialism isto idealism just as truth is opposed to falsehood.
79. Such a grammar mistake is ______ among the beginners of English study.
78. I didn’t sleep well last night because it was too _______ outside.
77. The old man received a lot of respect for his ________ character.