can和do的用法总结
回答
爱扬教育
2022-03-22
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do的用法远比can多得多，作为助动词它还可以表示强调用以强调：
I do want to be sure. Do be still!我确实想肯定。安静！
扩展资料
例句：
When can I get my test results?
我什么时候可以拿到化验结果？
We can reduce the problem to two main issues.
我们可以将这个问题概括成两个要点。
This could cause serious damage to the country's economy.
这可能对国家的经济造成严重破坏。
The operation could prolong his life by two or three years.
这次手术可使他多活两三年。
Many children can't function effectively in large classes.
许多孩子在大班上课时学习效果不好。