do you know之后的疑问句是否要加助动词根据所给词的正确形式填空(不必一空一词):Do you know how many _____(tooth)a tiger has中间是填teeth does还是只要填teeth,如果填teeth does 但是后面的has已经是三单形式了.

问题描述:

do you know之后的疑问句是否要加助动词
根据所给词的正确形式填空(不必一空一词):
Do you know how many _____(tooth)a tiger has
中间是填teeth does还是只要填teeth,如果填teeth does 但是后面的has已经是三单形式了.