可分别改为:
an-a
shoe-shoes
must-have got to/have to ,must跟have to加在一起就是病句了,肯定错误,因为must 和have to是必须,不得不.
have to去掉,或者Must-Does
by-in.
in class表示:在.什么课,比如:be in an English class.在上英语课.
可分别改为:
an-a
shoe-shoes
must-have got to/have to ,must跟have to加在一起就是病句了,肯定错误,因为must 和have to是必须,不得不.
have to去掉,或者Must-Does
by-in.
in class表示:在.什么课,比如:be in an English class.在上英语课.