单选题 Though her parents ______ her musical ability, Jerrilou's piano playing is really terrible.
[A] pour scorn on [B] heap praise upon [C] give vent to [D] cast light upon

【正确答案】 B
【答案解析】heap praise upon：对…高度赞扬；pour scorn on以鄙夷的口气说；give vent to表达…，表示…；cast light upon把光线投射到…，使…清楚明白。句意：尽管杰罗的父母对她的音乐才能大加表扬，但她的钢琴弹得实在糟糕。