句型转换
His friend had already posted the photos for him. （改为否定句）
His friend ____ ___ the photos for him ____.
The exhibition of books began a few days ago. （改为一般疑问句）
___ the exhibition of books ___ a few days ago?
Tom said he had never been to Hawaii for holidays, ____ ____? （反意疑问句）
“Don’t be late for school.”Jim’s father said to him. （改成一个简单句）
Jim’s father ___ Jim ___ ____ ___ late for school.
She had learned three hundred English words by the time we came here. （就划线部分提问）
___ ____ English words ____ she ___ by the time you came here?