Question

she often什么 (not go)to school late

Answer 1

She often doesn't go to school late.
她不经常上学迟到。
解析：go是行为动词，且主语she是三单，要用doesn't来否定。

Answer 2

合适的做法是：
She doesn't often go to school late.
often放在not后

Answer 3

She often doesn't go to school late