Physics,and Physics Last mouth,i didn't get good grade because of the physics,now,i don't get a good grade again,because i do a bad job in physics. One of the reason is i don't know the test time at all!The test from 3:50pm to 5：00pm,only 70min!But,i thought the test time is 90min!So,i didn't finish it ,the test is very important for me,but i lost it.What should i do？ It's a very bad experience for me.