问题描述：
用since、for或ago填空.1.How long is it () you wrote to your sister?.
用since、for或ago填空.
1.How long is it () you wrote to your sister?
2.How long () did you write to your sister?
3.Jim has been working in Asia () he left England.
用since、for或ago填空.
1.How long is it () you wrote to your sister?
2.How long () did you write to your sister?
3.Jim has been working in Asia () he left England.
问题解答：
我来补答展开全文阅读