There we some ducks in the river[改成一般疑问句】 Are there any trees in your school[否定回答】 There are 【two】 pianos in that room【对括号部分提问】
问题描述：
There we some ducks in the river[改成一般疑问句】 Are there any trees in your school[否定回答】 There are 【two】 pianos in that room【对括号部分提问】
答