短语：从方框中选择适当的短语，并用其适当的形式填空，有两个多余项。
（每题1分，共5分）
1. ________________ you’ve got a chance, you had better make full use of it.
2. I think the photos can ________ us ________ the days we spent together in the country.
3. When they crossed the Rocky Mountains, they managed to _____________ some mountain goats.
4. He wrote a long moving poem ________________ those who died in the war.
5. It is not polite to ____________ other people.
