Question

It takes 10-12 days ____ from the Earth to the Moon ____ rocket.

A．to travel, by	B．traveling, on
C．travel, on	D．traveling, by

Answer 1

A

试题分析：句意：从地球发射火箭到月球，需要10到12天的时间。it takes some time to do sth花费多长时间做某事，by rocket乘火箭，故选A
点评：英语中有很多固定的用法，诸如finish,enjoy,mind,practice等词后接动名词的形式，而would you like，ask,tell等词后都接动词不定式的形式，spend sth doing sth /spend sth on sth 等，此类固定用法要求学生进行牢记。