To do a task promptly is better than ______ about it.

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问题 To do a task promptly is better than ______ about it.

选项 A、worry
B、to worry
C、worried
D、worrying

答案A

解析 当名词词组中心词为表示金钱、时间、度量等变量名词时,往往可以根据意义一致的原则,把这些复数名词看作一个整体,谓语动词采取单数形式。因此,可以排除B和C项、D项。时态有误亦可排除。故A为正确答案;例如:Twenty-five dollars is too much to pay for that shirt. 花25美元买那件衬衣太贵了。Ten minutes is more than enough time to complete this exercise. 做完这个练习用不了十分钟。
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