We thought of selling this old furniture，but we've decided to_______ it．It might be valuable．
A.hold on toB.keep up withC.turn toD.look after在线课程A
解析：
该题考查根据语境选择正确的短语动词.四个选项均为短语动词，但所表示的意义不同：hold on to坚守，保留(房屋，财产等)；
keep up with追随，与……并肩前进，跟上；
turn to转间，变成，求助于；
look after照料，看管，寻求.前边的并列分句叙述了We thought of selling this old furniture，根据but所表示的转折意义及后边一句It might be valuable的语境可以判断出，我们已决定把原来考虑要卖掉的旧家具保留下来，答案选A.例如：We should hold on to the house and sell it later when prices are high．我们应该保留这座房子，待卖得起好价钱时再卖掉.