单项选择题What do we learn about the group()
A.Some of them already knew each other. B.Some of them had been there before. C.They had already chosen their activities. D.They came from the same city.
单项选择题第(3)空应选择()
问答题Watching TV and traveling in a taxi can produce little CO2.( )
单项选择题By walking to and from school, children can learn().
A.driving skills B.running skills C.road safety and life skills D.knowledge about science
单项选择题The possible time for breakfast in England is().
A.from 7:00 pm to 9:00 pm B.from 7:00 am to 9:00 am C.from 4:00 pm to 5:00 pm D.from 4:00 am to 5:00 am