句型转换1.China built its first zoo __about__2500__years__ago__.(画线提问)____ ____ China build its first zoo?2.It kept animals in big cages.(改为否定句)It____ ____ animals in big cages.

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句型转换1.China built its first zoo __about__2500__years__ago__.(画线提问)____ ____ China build its first zoo?2.It kept animals in big cages.(改为否定句)It____ ____ animals in big cages.
句型转换
1.China built its first zoo __about__2500__years__ago__.(画线提问)
____ ____ China build its first zoo?
2.It kept animals in big cages.(改为否定句)
It____ ____ animals in big cages.

句型转换1.China built its first zoo __about__2500__years__ago__.(画线提问)____ ____ China build its first zoo?2.It kept animals in big cages.(改为否定句)It____ ____ animals in big cages.
When did China build its first zoo?
It didn't keep animals in big cages.