Unit 6 When was it invented?SectionA (3a-4c)I. 单项选择：（BC 层学生必做，A 层选做或不做）( )1. A new market ________ in our town last year.A. buildB. builtC. is builtD. was built( )2. The fish __________ delicious. I can’t wait to eat it.A.feelsB. soundsC. tastesD. smells( )3. You can...
