He was a student.（改一般疑问句）

1、He was a student.（改一般疑问句）
Was he a student.
2、He went to school by bike yesterday.（改一般疑问句）
Did he go to school by bike yesterday.
3、Tom was a worker.（对was a提问）
What was Tom?
或What did Tom do?
(第三道好像题目有问题)
4、I got to school at six yesterday afternoon.（对at six 提问）
When did you get to school yesterday afternoon?
或What time did you get to school yesterday afternoon?
我英语蛮好的,应该没有错误的~