1.there is a box of milk in the bag.（a划线提问） 2.there is a box of milk in the bag.a box of提问

1.there is a box of milk in the bag.（a划线提问） 2.there is a box of milk in the bag.a box of提问
1.there is a box of milk in the bag.（a划线提问） 2.there is a box of milk in the bag.a box of提问

1.there is a box of milk in the bag.（a划线提问） 2.there is a box of milk in the bag.a box of提问
1.How many boxes of milk are these in the bag?
2.How much milk is these in the bag?
1题是对多少盒提问,是可数名词,要用How many,后面接复数,be动词也要是复数.
2题是对多少牛奶提问,牛奶是不可数名词,要用How much ,be动词要是单数.

什么意思，没看懂啊