1.I found it was impossible to finish the work in two hours改同义句2.Helping others is very important and necessary.I saw they were playing basketball yesterday afternoon.
问题描述：
1.I found it was impossible to finish the work in two hours
改同义句
2.Helping others is very important and necessary.
I saw they were playing basketball yesterday afternoon.
答
1.I found finishing the work in two hoursit was impossible .2.It is very important and necessary.to Help others 3.I saw they were playing basketball yesterday afternoon..这句我也不会.