改为意思相同的句子：this is my pencilbox 改为否定句：i am miss gao

1 This isn't my pencilbox
2 I am not Miss G.ao.
3 they aren't in Grade Two
4 Did Tom dohis homework last night
5 -Where were you?-i stayed at home
6 -Did he go to school from Monday to Friday?-yes,he did.
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1 They are not in grade two.
2 Tom didn't do his homework last night .
3 where were you？ -I stayed at home.
4 Doesn't he go to school from Monday to Friday？ -No，he doesn't.

It is my pencilbox.
i am not miss gao.
they are not in grade two.
tom didn't do his homework last night.
where were you？ -i stayed home.
Did he go to school from monday to friday？ -yes，he did.