Sam was here at ten o'clock.肯定回答,否定回答
问题描述:
Sam was here at ten o'clock.
肯定回答,否定回答
答
什么意思?
答
山姆10点钟的时候在这里,但现在不在
答
Sam was here at ten o'clock
Sam wasn't here at ten o'clock
Was Sam here at ten o'clock?