they spent half an hour on talk是什么基本句型
they spent half an hour on talk是什么基本句型
They spent half an hour (pack)their bags 用适当形式填空 过去完成时
1、I spent half an hour(working on)this difficult math proble
I spent half an hour on my homework yesterday.(保持原意
I spent half an hour on my homework yesterday.(保持原意)
He spent half an hour on the newspaper yesterday (改为同义句)
Mary spent half an hour on play the piano 这句话不对吗?应该怎么该?
he spent half an hour swim.=It( )( )half an hour( )( ).
I spent half an hour ______ my homework
( ) 15.I spent half an hour ___________ my homework .finish
I spent half an hour ___(finish) my homework.
We spent half an hour writing it.(%u63D0%u95EE%uFF09