下列句子中，标点符号的使用不正确的一项是(　　)

How can they learn anything ______ they spend all their spare time watching television?

My math teacher said I was too lazy.— ______________. You should work harder.

At long last the child was found on top of ______ we call the museum of science and technology.

I would _____ be going there with more preparation but we will do the best we can and see where we are [ ]