2.There ______ an air_conditioner on the wall.求解(填空)

问题描述:

2.There ______ an air_conditioner on the wall.求解(填空)

is
There is +可数名词单数或是不可数名词
There are+可数名词复数
There __is____ an air_conditioner(一台空调是单数) on the wall.