其他(共1小题)
I haven’t decided when we should start .(同义句转换)
I haven’t decided_________________ start .
Why did he go to bed so early ? I don’t know .(合并句子)
I don’t know_______ he_______ to bed so early.
He put down the things before leaving .(变为否定句)
He down the things before leaving。
He usually learns English by taking notes .(对划线部分提问)
_______does he usually_______ English ?