他的观点这些年有什么变化？
How has his opinion changed over the years?
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How英 /haʊ/|美 /haʊ/
has英 /hæz/|美 /hæz/
changed英 /tʃeɪndʒd/|美 /tʃeɪndʒd/
解释
has 是助动词，置于主语 his opinion 之前构成疑问句；changed 是规则动词 change 的过去分词，与 has 构成现在完成时。how 作为疑问词询问变化的方式或程度。
How has his opinion changed over the years?
has 是助动词，置于主语 his opinion 之前构成疑问句；changed 是规则动词 change 的过去分词，与 has 构成现在完成时。how 作为疑问词询问变化的方式或程度。