All tasks that are assigned to you need to be accepted, unless you raise the task for yourself. To do so you can click on the Accept link and either accept the ToDo or reject it.
If you accept the task it will be added to your list of tasks that are assigned to you.
If you reject the task it will be returned to the raiser to be reallocated. We suggest you add a progress note to the task if you decide to reject it to inform the raiser of your reason for rejecting it.
Until the raiser reallocates the task to another it will remain in your tasks to be accepted albeit with a Rejected status.