用since、for或ago填空.1.How long is it () you wrote to your siste

用since、for或ago填空.1.How long is it () you wrote to your siste how long is it since you went to the seaside? 用since、for或ago填空.1.Alan saved money () yeas to buy his car.2 How long is it since your father_____an engineer?（become） How long do you suppose it is since he left for Europe?— No (How long ago) is it that you last saw her? how long is it since you last saw her? 1.How long is it since your sister _________(become)a teache How long ___ your mother ___?Since two years ago. 用since、for或ago填空.1.We haven't seen Sally ( ) six months. 用since、for或ago填空. 1.Harry left this town eighteen months ( ) 用since、for或ago填空.1.Harry left this town in January and we ha