He stayed at home the whole day _____ the piano last Sunday.
问题描述：
He stayed at home the whole day _____ the piano last Sunday.
A. playingB. to play
答
选A
“上个礼拜天我整天呆在家里弹钢琴”
playing 是现在分词作伴随状语,表示呆在家里的同时,在弹着钢琴.不定式没有作伴随状语的用法.