1.Why has my life been changed by computers?
2.When has paper been made from wood since the 19th century?
一般是将特殊疑问词放在句子前面,
然后,将助动词放在特殊疑问词的后面,在抄下句子加上问号就行了.
注意；因为你已经用了助动词,所以,抄句子的时候,就不用再抄助动词了啊.
第二种做法.
将助动词提到主语的前面,在将特殊疑问词放在前面加上问号就行了啊.
例如：
Paper has been made from wood since the 19th century.
变为,
has paper been made from wood since the 19th century.
再加上,when在前面,
When has paper been made from wood since the 19th century
在加上?
When has paper been made from wood since the 19th century?
这样就行了...
明白了吗?