问题描述:
过去式的肯定句与一般疑问句
最佳答案:
如:I was at home yesterday.
I wasn't at home yesterday.
Were you at home yesterday?
? ?
问题描述:
过去式的肯定句与一般疑问句
如:I was at home yesterday.
I wasn't at home yesterday.
Were you at home yesterday?
上一篇:某小组同学利用如图1的装置研究无线电波照射到物体表面时,反射强度与无线电波的频率是否有关.他们在固定于远处的同一反射物表面添加涂层,用无线电设备对其发出无线电波,通过观
下一篇:afternoon