a block of tickets的用法和样例：
- I want to buy a block of tickets and give them to my friends. It's a nice gift don't you think so?
- He buy a block of share in mark and spencer.
- The man cleft a block of wood in two with an axe.
- He is pointing down a block of granite.
- This is a block of undeveloped land.
- The man cleft a block of wood in two with an ax.