包装材料选择时可遵循的技巧有参照技巧，（），试用技巧，试验技巧和检测技巧。

Monday, July l5th
        Great weather! It was    1   and hot all day. We went to a beautiful beach. We had great fun
   2    in the water. In the afternoon. we went   3   . The shops were too crowded, so I didn't really
enjoy it.
Tuesday, July 16th
        Today it    4   , so we went to a museum. It was kind of boring. I found a small boy crying in
the corner. He was    5   and I helped him find his father. That made me feel very    6    . I didn't
have any money for taxi,so I walked    7   to the hotel. I was really tired.
Wednesday, July 16th
        Today the weather was      8    , so we decided to play tennis. We    9   all the morning. It was
really fun. We had Sichuan food for dinner. It was     10    .