将下列句子中汉语部分译成英语，注意使用适当的形式。

1. It's cold in winter. We can _________________ in winter. (堆雪人)

2. A cat _________________ climbing trees. (擅长于)

3. My father will come back _________________ this month. (在...末)

4. He plans to go to Cuba to _________________ with his family. (聚会)

5. Please _________________ your shoes before entering the room. (脱下)