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.

依次执行以下命令后的输出结果是______。SET DATE TO YMD SET CENTURY ONSET CENTURY TO 19 ROLLOVER 10SET MARK TO "."CTOD("49-05-01")

A．49.05.01

B．1949.05.01

C．2049.05.01

D．出错