下图漫画①弘扬了艰苦奋斗精神 ②减少了春节晚会的精彩③传承了勤俭节约的美德 ④杜绝了奢侈浪费的出现
After many experiments, finally we __________ the material we wanted very much.
The water __________ the sand soon disappeared.
Mobile phones __________ in China are well worth trusting for many reasons.
In the last few years thousands of films __________ all over the world.
Sam___________ some knowledge of the computer just by watching others working on it.
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