请写清楚原因,In my opinion ,life in the twenty-one century is much easier than ——.A.that used to B.it used to be C.it was used to be D.it is used to

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请写清楚原因,In my opinion ,life in the twenty-one century is much easier than ——.A.that used to B.it used to be C.it was used to be D.it is used to

请写清楚原因,In my opinion ,life in the twenty-one century is much easier than ——.A.that used to B.it used to be C.it was used to be D.it is used to
请写清楚原因,
In my opinion ,life in the twenty-one century is much easier than ——.
A.that used to B.it used to be C.it was used to be D.it is used to

请写清楚原因,In my opinion ,life in the twenty-one century is much easier than ——.A.that used to B.it used to be C.it was used to be D.it is used to
B
used to,常常、以往,指过去的一个状态,后接动词原形
be used to,习惯于
根据题意,应该是与过去生活相比

D
同一个人或物，两个不同的时间进行对比时，应该用人称代词。

B
依我之见，二十一世纪的生活比过去要容易得多

B 你可以翻译一下整个句子的

请写清楚原因,In my opinion ,life in the twenty-one century is much easier than ——.A.that used to B.it used to be C.it was used to be D.it is used to in my opinion 请解答,写清楚原因 in my opinion等于什么? 是 in my opinion 还是 on my opinion 是to my opinion 还是 in my opinion in my opinion和on my opinion各是什么意思 In my opinion,he is my teacher in my opinion中的opinion可以加s吗 in my opinion 中opinion要加s吗 和in my opinion同义的词有哪些?请给2-3个急急急! in my opinion的同义词是什么 In my opinion ,you are a fool in my opinion 有什么替换词 in my opinion 的同义句 In my opinion 同意思短语, in. my. opinion词组完整得意思 personally 和in my opinion什么区别