To tell the truth what you said was too for us to understand.A. complexB. comfortableC.

问题补充：

To tell the truth, what you said was too for us to understand.

A. complex

B. comfortable

C. concrete

D. common

答案：

(答案→)A. complex

B. comfortable

C. concrete

D. common

解析：A考查形容词辨析。句意：说实话，你说得太复杂了，我们理解不了。complex“复杂的，难懂的”；comfortable“舒适的”； concrete“具体的”；common“普通的”。故选A项。