下列句子中，语义明确没有语病的一项是（ ）

You mustn’t swim here. Look at the sign. It “No swimming”.—Oh, I notice it. Thanks for telling me.

I think I’ll give Bob a ring.— You ______.You haven’t been in touch with him for ages.[ ]

Miss. Zhang teaches ____ Chinese.

下列各句中加点的词，解释不正确的一项是（ ）（3分）