that ice creams man is very busy
这里man是第三人称单数,而且说是man在busy,而不是icecreams在busy所以用is
his icecreams are very nice
icecreams在这里是指这个man所有的icecreams是very nice的
是复数可数的物品
所以用are
that ice creams man is very busy
这里man是第三人称单数,而且说是man在busy,而不是icecreams在busy所以用is
his icecreams are very nice
icecreams在这里是指这个man所有的icecreams是very nice的
是复数可数的物品
所以用are