正确答案为: How many ruler is there in the pencil box?文具盒里有多少个尺子? 再问: 为什么不是how many rulers in the pencilbox 再答: 因为题目是:There is a ruler in the pencil box. 提问就要有 Is there.
如果题目是:A ruler in the pencil box. 提问才是:How many rulers are in the pencil box 再问: 最终答案应该是how many rulers are there in the pencilbox 吧 再答: 可以,也可以是:How many ruler is there in the pencil box?