校长对我们非常负责,他亲自为我们做一切事情.
The headmaster is so responsible that he does everything for us .
Which is more (value) to you, health or wealth?
In summer, it often rains (heavy) with strong wind in Southern China.
The higher we climbed, the (thin) the air became.
The two ( factory) were moved outside the city last year.
An earthquake happened in this area two days a .