根据汉语意思完成下列句子
1. 她有使孩子高兴起来的办法.
She has a way to __________ __________ the children.
2. 吉姆在国外旅游时,不得不给他哥哥写信,因为他把钱都花光了.
While traveling abroad, Jim had to write to his brother because
he __________ __________ __________ all his money.
3. 他们都自愿付出时间帮助别人.
They all volunteer their time __________ __________ other people.
4. 这道题太难,我解不出来.
This problem is so difficult that I can't __________ __________ __________.
5. 他们把食品分给无家可归的人们.
They __________ __________ food to the homeless people.