15. give in递交，投降； give up放弃，结束，奉献，让出； give out 宣告，放出，分发，用光，耗尽；give away 赠送, 泄露，揭发，背叛; give back归还

When she got older she ______ all her toys ________.

Could you _______ the papers to your classmates?

He never _________ to any difficulty.