改成一般过去时he finds his shoes under the bed they will leave beijing for shanghaiare the students singing in englishli ming doesn't do well in englishmiss gao isn't our english teacher

He found his shoes under the bed.
They left Beijing for Shanghai.
Did the students sing in English？
Liming didn't do well in English.
Miss Gao wasn't our English teacher.

he found his shoes under the bed
they would leave beijing for shanghai
were the students singing in english
li ming didn't do well in english
miss gao wasn't our english teacher

He found his shoes under the bed
They would leave beijing for shanghai
Were the students singing in english?
li ming didn't do well in english
Miss Gao wasn't our english teacher