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how much rich do you want?

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how much rich do you want?
Afive kilos and half Bfive kilos and a half
Cfive and half kilos Dfive and half a kilo
那如果是半个小时用加s么?
how much rich do you want?
正确答案是B
英语这样描述有半的数量的;
(1.) 数词+and a half +单位s 如:two and a half hours 要注意单位后加 s
(2.) 数词+单位(s) +and a half 如 two hours and a half 注意:这里单位是否加s 要看其前的数词是否大于一,所以也可以说 one hour and a half .