一句现在完成时的句子,求对划线部分提问She has learned 1000 English words since she c_英语解答

一句现在完成时的句子,求对划线部分提问
She has learned 1000 English words since she came.
划线部分为 since she came.

人气：414 ℃　时间：2020-05-10 22:05:19

解答

How long has she learned 1000 English words?
注；就since和 ,for 短语提问都是用HOW LONG 提问