苏州 记者:How many ____ do you need?A.hours of sleep B.hours of sleeping C.sleeping hours 为什么选A

HOW many do you wan How many pounds do you weigh? How many pounds do you weigh? How many ____ do you need?A.hours of sleep B.hours of sleeping C.sleeping hours 为什么选A How many candles do you have on your birthday? How many good friend do you have?(改错) How many good friend do you have .(帮忙改正) How many of football competitions do you know? How many medicines do you want to take? How do you do?