问题
选择题
A dozen ideas were considered _______ the chief architect decided on the design of the building.
A．before
B．whether
C．unless
D．because
答案
答案：A
考查连接词。句意“在总建筑师对大楼的设计作出决定前，有十二个想法被考虑了。”根据句意可知，应该用连接词before“在......之前”。故选A。