I enjoy my new life here. But I still miss my old friends from time to time. Here the underlined part means 　　　.

Elephants eat________, but they can move _______when necessary.

There are large numbers of school buses ________designed for primary schools in Taizhou.

---  _______ does your sister go to school?---  At 7 o’clock.

— Did you find the small village yesterday?  — Yes, without any difficulty, for it has ______ changed over years.