Question

there was some milk in the fridge，肯定句改否定句？

Answer 1

改成否定句：There wasn't any milk in the fridge.
There be句型的否定，直接在be(am, is are, was, were）后加not即可。
some一般用于肯定句中，any一般用于否定句和疑问句中。句子改写时，要考虑some和any的区别。