There is a bird____[sing]in the tree
问题描述:
There is a bird____[sing]in the tree
答
singing,ing形式表伴随,这句话的意思是有一只鸟在树上唱歌.
There is a bird____[sing]in the tree
singing,ing形式表伴随,这句话的意思是有一只鸟在树上唱歌.