一个坏了的水龙头每分要白白流掉68克水，1时浪费掉多少克水？
1小时=60分钟，
60×68=4080（克）；
答：1时浪费掉4080克水．
He to school by bike, but now he to school on foot.
A．used to going; gets used to go
B．used to go; gets used to go
C．used to go; gets used to going
简述创造性的选用词语的方法。
