As long as you park your car in a good place, you can do anything. As for whether the first gear or the fourth gear is fast or slow, it depends on your personal proficiency. Generally, the speed will be 40-50 yards in the exam. If your speed is more than 30 yards, you can control the speed at about 30 yards by stepping on the brake, then step on the clutch to let the car slide, pull over, find the right position, then step on the brake and stop smoothly. (Turn signal, rearview mirror)
When the exam turns, the second gear is usually enough. As for whether it can be reduced gradually or directly, it is ok. Just pay attention to the coordination of brakes, clutches and gears.