A train runs 150 kilometers an hour（对150 kilometers 提问）疑问词是什么_______ ___________
问题描述：
A train runs 150 kilometers an hour（对150 kilometers 提问）疑问词是什么_______ ___________
A train runs 150 kilometers an hour（对150 kilometers 提问）疑问词是什么两个单词_______ ___________
A train runs 150 kilometers an hour(对150 kilometers an hour提问)疑问词是什么两个单词___________ __________
答
1.how long
2.how fast