Thank you for your answers!
I tried hard to transfer to someone else. But the new simple plan is much cheaper than the old classic 1000 minute family plan I have now. So it's very hard to transfer it to someone.
I check my online account. It says I need to pay $30 for 4GB data. Is there any cheaper way?
And also, for the worst choice I may still try to persuade them to waive the early termination fees. But I am not a US citizen. Does this also work for me?
Again, thanks for all your help!