问题描述：
1.His grandmother can't walk and has to sit in a w_____
2.I love dogs because they never c_____ and they're grateful.
3.He is my best friend.We all b_____in him.
2.I love dogs because they never c_____ and they're grateful.
3.He is my best friend.We all b_____in him.
问题解答：
我来补答展开全文阅读