——Are you a teacher?——No,but I used to be (a teacher) .
----Do you like english?-----No , but I used to .
问句有助动词或be动词时 回答要与前面保持一致 若有动词则省略used to 后面的动词以避免重复
如果是be动词则不可省略be动词
——Are you a teacher?——No,but I used to be (a teacher) .
----Do you like english?-----No , but I used to .
问句有助动词或be动词时 回答要与前面保持一致 若有动词则省略used to 后面的动词以避免重复
如果是be动词则不可省略be动词