Mr White____at 8:30 for the meeting, but he didn't show up.
| A．should have arrived | B．should arrive | C．should have had arrived | D．should be arriving |
81. Our cadres, whether high or low in their official rank, are the people’s public servant and _____workers.
| A．common | B．ordinary | C．usual | D．Normal |
80. Materialism isto idealism just as truth is opposed to falsehood.
| A．against | B．oppose | C．opposite | D．Opposition |
79. Such a grammar mistake is ______ among the beginners of English study.
| A．normal | B．common | C．general | D．Ordinary |
78. I didn’t sleep well last night because it was too _______ outside.
| A．noisy | B．quiet | C．noise | D．Loud |
77. The old man received a lot of respect for his ________ character.
| A．grand | B．noble | C．high | D．Splendid |