Go on doing the other exercises after you have finished this one .这是一个病句.要求改错.

Go on doing the other exercises after you have finished this one .这是一个病句.要求改错.
Go on doing the other exercises after you have finished this one .这是一个病句.要求改错.

Go on doing the other exercises after you have finished this one .这是一个病句.要求改错.
Go on doing （the） other exercises after you have finished this one
去掉the the other后面为单数,指两者之间的另外一个；other后加复数形式；
这里的exercise没有特定指明是两种运动,所以就默认是多种运动
这句话可以理解为：等你做完这项运动后,继续做其他的运动.

去掉have

同意二楼的意见，go on to do ,不能把have去掉，这是现在完成时的助动词

doing改成 to do。Go on doing是一直干某事，而Go on to do 是接着干某事，前后两件事是不一样的。

doing 改为to do