翻译句子....

Don't you students need these books any more?

If you lost your bank card, you must report the loss to your bank!

These books are all of you students not it?

If you lose the card you must report the loss to the bank!

is those books that your students throw away?

if you lost your card you must report the loss of it to the bank.

Those books ,which your students not used
If you lose card,you must be report the loss to your bank.