题目内容
Half of the class done most of the work. The rest rather difficult.
| A．has, is | B．have, are | C．have, is | D．has, are |
C
考察主谓一致.这里的class指的是学生们.一半学生也是复数,rest其余的,为抽象名词,不可数,用单数,故选C.
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