With an appropriate preposition:

With an appropriate preposition:
(1)The pianist began to play and the girl in red began to sing ____ the music. (2)Ted has been absent ____ class for quite some time.
【正确答案】：to;from
【题目解析】：本题考查介词。【要点透析】 sing to the music意为“伴随着音乐而唱”。 be absent from是一个固定短语,意为“缺席”。