—What happened?
—They didn’t ____ each other and had a fighting.
A. build upB. agree withC. stand forD. worry about
B
【解析】
试题分析：句意：怎么了？他们彼此意见不合然后打架了。A 建立；B 同意；C 代表；D 担心；结合语境故选B。
考点：考查动词短语辨析。
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