1 . Their main weapons are clubs and poison-tipped arrows, used ________both hunting and protecting their territory against outsiders. （用适当的词填空）

2 . My classmates and I had a really unforgettable experience，which made us very happy. We paid a visit     1     Lucy’s house yesterday. We didn’t have difficulty finding her house because she     2       (give) us clear directions. When we arrived at her house, her mother was preparing food for us. Then we began to help with the cooking. About an hour later, the food was ready, and we sat at the table enjoying the delicious food including fish and     3     (vegetable).   Finally we went to Ann’s room where we watched our favourite TV programme together.     4     (decorate) with flowers and balloons, the room was warm and comfortable.

3 . Before you pay a visit to a place of interest, look in your local library      a book about it.

A．on

B．at

C．for

D．to

4 . Would you mind not picking the flowers in the garden? They are __________everyone's enjoyment.

A．in

B．at

C．for

D．to