根据句意和首字母，填写所缺单词。 1. He is a v_______, an
题型：填空题
问题：
根据句意和首字母，填写所缺单词。
1. He is a v_______, and he often treats some animals.
2. His father is able. He can s_______ this problem by himself.
3. His grandfather can't walk and has to sit in a w_______.
4. I love dogs because they never c_______ and they're grateful.
5. He is my best friend. We all t_______ in him.