I didn't know you were so busy一般疑问句

I didn't know you were so busy一般疑问句 I didn't know you were so busy. didn't know you were so busy. 英语句子改错：I didn't know why you were so busy in the last there l didn't know you were so busy ,这里怎么有两个过去式? 英语翻译I didn‘t know you were coming,so I didn’t buy any beer.( Honey,I didn't know that you were so much concerned with the -Hello,i didn't know you were here. I didn't know you were in China . Hello!I didn’t know you were here. Sorry I [didn"t] know you were sick.括号中为什么用didn"t. 英语语法问题I didn't know you were her mother和I didn't know you ar