In the past ,we used to s_____letters

In the past ,we used to s_____letters used to是否等于in the past we leave past in the past ;gonna find the In the past people used many things___of money _____(husband)used to support their families in the past. In the past,people used ___ to calculate fast.(abacus) The life we were used to __greatly in the past 20 years A change B has changedC changing D have changed In the past,we went back to the original less than in the past. We used to go skating in Michigan every winter,but I haven't gone for the past five seasons.本题考查了什么语法点? Even though we rarely speak,but l know,you still in your past ,l used to 改错:In the past,people in the UK used pounds and pence We( )school at about half past four in the afternoon. the life you were used to ______greatly in the past few years.(change) There___lots of old buildings here in the past A,was B,used to have C,used to be This bakery __ outdated bread to make new products in the past three years.B.has used C.had used People in the past used e______ tusks to make works of art. In the past,there is a hall.(用used to改为同义句) 改错：I didn’t know there used be a new train station there in the past