1.	Choose the most appropriate unit to measure the length of a mountain bike.
		A.	kilometer	B.	meter
		C.	millimeter	D.	centimeter
		Hint
	2.	Choose the most appropriate unit to measure the width of a toothbrush handle.
		A.	centimeter	B.	kilometer
		C.	millimeter	D.	meter
		Hint
	3.	Choose the most appropriate unit to measure the length of a pencil eraser.
		A.	kilometer	B.	centimeter
		C.	millimeter	D.	meter
		Hint
	4.	Choose the most appropriate unit to measure the length of one stair.
		A.	kilometer	B.	centimeter
		C.	millimeter	D.	meter
		Hint
	5.	Choose the most appropriate unit to measure the distance between two cities.
		A.	centimeter	B.	kilometer
		C.	millimeter	D.	meter
		Hint