哪一句的语法是正确的？A: There is no A and B in my bag. OR B: There are no A and B in my bag.

There is no A and B in my bag.-----Correct.

There is no A or B in my bag.

A
there is 句型应该采用英语当中的就近原则,意思是谓语单复数形式取决于紧跟其后的名词。

根据A和B的名词词性，有不同的规则

这里的谓语要用单数,因为后面有 no
所以正确说法是there is no A and B in my bag

A