While____the dog,you should take care not to____.Otherwise,it may be dangerous to strangers.
A.walking; get loose | B.walk; be loose |
C.walking for; get it loose | D.training; get it run |
相关知识点
推荐套卷
While____the dog,you should take care not to____.Otherwise,it may be dangerous to strangers.
A.walking; get loose | B.walk; be loose |
C.walking for; get it loose | D.training; get it run |