【正确答案】 B

【答案解析】[解析] 画线词组原形give up为动词词组，意为“放弃”。A项end意为“结束”；例：The government acted to end bakers' strike in the city.政府采取行动结束了城里面包师的罢工。B项abandon意为“放弃”；例：Mary has abandoned the hope of marrying.玛丽已经放弃了结婚的希望。C项build意为“建立；加强”；例：Tension is building between the two nations.两国之间的紧张关系正在上升。D项strengthen意为“加强”；例：Our friendship has steadily strengthened over the years.几年来我们的友谊稳步增进。故本题选B。