改错。（将错项序号写出来，并在后面的横线上改过来。）
1.Did Sam walked to school yesterday?
A B C ____________________
2.There aren’t someboys here.
A B C ____________________
3.I wantdomy homework now.
A B C ____________________
4.Let’sgoing to school.
A B C ____________________
5.What are the monkeys? They are here.
A B C _____________________
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