非淋菌性 * * 炎最常见的病原体是沙眼衣原体和支原体。
参考答案：对
— I am really surprised that a policeman in his car _____ have hit several common pedestrians, killing
one and injuring three.
— Yes, If one _____ ask for trouble, what can we say?[ ]
A. would, will
B. must, may
C. should, must
D. need, dare
先赋角色与自致角色
