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1.After graduation, he went on to do some research ever carr

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1.After graduation, he went on to do some research ever carried out 中ever 是什么意思
2.Most people are not yet aware that water is a precious resource 是宾语从句吗 aware后不需要加of 吗
erver 曾经
不能加of,of是引导名词的,后面不是名词,是个句子要用that,就不用of了.
同样的用法还有,be afraid 如果后面是一个词就用of,如果是一件事,就用that,不用of.
再问: 也就是说be aware of 不能加that从句 那这句 the young couple was worried, because neither of them was aware of where they had lost the necklace.是对是错
再答: where引导 是个宾语从句,就相当于一个地方,做of 的宾语
再问: 那第一个句子的that 引导是什么从句
再答: 也是宾语从句,区别在于that在那里就是个引导词,所以不加of 而这个句子where 在从句里是状语,充当句子成分,相当于the place。