The old men must ______politely.A.be spoken B.be spoken to C.speak D.speak to.
问题描述：
The old men must ______politely.A.be spoken B.be spoken to C.speak D.speak to.
give me a reason
答
B 和年长的男人说话应该礼貌些
用被动语态且要加to 因为speak为不及物动词表示谈论对象要加to