单选题 The apartment was ______ at $ 20,000 and its owner was happy about that.

【正确答案】 B
【答案解析】(assess对……进行估价)。句意为：该公寓的估价是两万美元，业主因此感到非常高兴。A．assault袭击；C．assert宣称；D．avenge替……报仇。