by himself在句子中做什么成分?The building shall be constructed by himself.上句中的by himself 在句中做什么成分?还有一句话“He has the ability to do the work."变成疑问句是”Has he the ability to do the work?
问题描述：
by himself在句子中做什么成分?
The building shall be constructed by himself.
上句中的by himself 在句中做什么成分?
还有一句话“He has the ability to do the work."
变成疑问句是”Has he the ability to do the work?
答
Has he the ability to do the work?
Does he have the ability to do the work？
都对的
by himself 就是由他自己来 完成
答
第一个
补充
第二个
应该是Does he have the ability to do the work？
答
作宾语成分，动词后的都是宾语成分，系动词后的是表语成分
答
1、补语，但是补语的定义一直不好理解，会用就行了吧。
2、Does he have the ability to do the work？
have这里是实意动词，跟普通动词一样。你没有见过go,come这种词提前的吧？
答
by himself作状语
Has he the ability to do the work?
Does he have the ability to do the work?