根据句意，使句子意思完整，语法正确。
1. Arny began ice skating. _____ the age of four.
2. Liu Xiang was _____ in 1983 in Shanghai.
3. Yesterday I did some morning exercises and _____ a little breakfast.
4. I stayed at home and _____ TV yesterday.
5. The boy _____ Li Ming is my friend.

根据句意，在每个句子的空白处填入一个适当的词，使句子意思完整，语法正确。

根据句意，在每个句子的空白处填入一个适当的词，使句子意思完整，语法正确。