—I've just borrowed a CD player, but I don't know _______.
—You can read the instructions.
A：how to use it
B：where to buy it
C：when to return it
D：where to put it
我会填多音字，并组词。
便 biàn ____ pián ____
圈 quān ____ juàn ____
____乐业 自____自受 丢____甲
____山____岭 飞____走壁 惊涛____
