Teachers don't really like to hear the question "What will be on the test?"
I'm sure you know why: teachers think all of the information they've presented is test-worthy. A better question you might ask is "What will be the format of the test?"
Teachers might be more open to this question, because they know that different types of questions pose different kinds of challenges. You don't study for an essay question test the same way you'd study for an open book test, for example.
Feel free to do some detective work before you tackle those upcoming midterms. See if you can find out which type of test formats you'll be facing, so you can study in the most effective way. You might want to brush up on the following: