Mum isn't in .She has _to Hangzhou on businessa,gone b,been并说明理由但老师说选b

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Mum isn't in .She has _to Hangzhou on businessa,gone b,been并说明理由但老师说选b
Mum isn't in .She has _to Hangzhou on business
a,gone b,been并说明理由
但老师说选b

Mum isn't in .She has _to Hangzhou on businessa,gone b,been并说明理由但老师说选b
Mum isn't in .She has to Hangzhou on business
has gone to 表示去了某地,现在还没回来
has been to 表示去过某地,现在也已经回来了
(尽量用简洁的语言表述给你,)

A. gone 指妈妈现在不在这里，去了杭州（尚未回来）。
B. has been to表示曾经去过杭州，现在已经回来。
故选A。
俗话说：人非圣贤，孰能无过？老师也会错啊。

选a,因为gone表示去了been表示去过，在这个句子中，用去了比较通顺，用去过就不符合语言习惯了。

选a.
他们解释的很明白了。

Mum isn't in .She's _to hangzhou business Mum isn't in .She has _to Hangzhou on businessa,gone b,been并说明理由但老师说选b Mum isn't in at the monent ,can I take a message ( ) her? isn't she lovely No,she isn't. No,she isn't. Isn't she deneuvely? She isn't in now.的同义句（两个） Nancy isn't---school.she is ill.(to,in,at ) She isn't in the house.的同义句 She isn't in now(的同义句) I'm afraid she isn't in right now she isn't in 忘说了有2句英语翻译She isn't in my school还是She aren’t in my school? 英语翻译Meimei can't go to school today because she isn't feeling well .Mum ask her to stay in (_1_).This morning Meimei went to the (_2_) together (_3_) Mum .The doctor asked Meimei to (__4__) her (__5__) and (__6__) Ah He looked over Meimei c Mei mei can'tgo to schoolMeimei can't go to school today because she isn't feeling well .Mum asked her to stay in （1）.This morning Meimei went to the （2）（3）together with Mum .The doctor asked Meimei to （4）her（5）and（6）“Ah.He —Your sister isn't a nurse,is she?—_A____.She teaches English in a middle school .A No,she isn't B Yes,she is C Yes,she isn't D No,she is Isn't She Lovely歌词