1.John walked with his friend 【in the street】.（对【】部分提问） where did John walk with his friend?
in the street 是地点对地点提问用特殊疑问词where,后面跟助动词,时态是过去时,所以用did,然后动词用原形walk
2.Lily liked 【playing the piano】.（对【】部分提问）
what did Lily like?
同上一题,playing the piano是宾语,提问用what
3.Mother looks at the kitchen angrily.(用yesterday改写）
mother looked at the kitchen angrily yesterday.
yesterday是过去发生的事,用过去式,只要把动词变为过去式就行了
4.We danced happily in the park this morning.（改成一般疑问句）
did you dance happily in the park this morning?
一般疑问句把be动词提前,没有be动词的用助动词,时态是过去式,所以提did,后面的动词用原形.
5.She would like a cup of tea.（改成复数句）
they would like three cups of tea.
she（她）复数形式是they（她们）,另外量词cup也要加s