A、<span style=";font-family:'Times New Roman';font-size:16px">should speak</span></p><p><br/></p>
B、<span style=";font-family:'Times New Roman';font-size:16px">spoke </span></p><p><br/></p>
C、<span style=";font-family:'Times New Roman';font-size:16px">should have spoken </span></p><p><br/></p>
D、<span style=";font-family:'Times New Roman';font-size:16px">speak</span></p><p><br/></p>