上海研发一种用氢燃料代替汽油的汽车，在某次测试中，若汽车在水平路面上做匀速直线运动，受到的阻力为2400N，20min内行驶36km，在这段时间内，汽车的速度为______m/s，牵引力做的功是______J，功率是______W．

Dear editor,
I am Evan from Canada. Being the eldest child in the family has its
disadvantages．First of all, I have to share all my______(玩具)with my 61.______
younger sisters．0f course，they don’t n______to return the favors because 62.______
I’m totally uninterested in their things．______(除……之外)that， 63.______
they are always hanging around me．I just can’t get a moment’p______． 64.______
At meals．I have to eat whatever is______the plate regardless of65.______
the taste．My sisters only try one bite if it not ______favorite food． 66.______
In addition，w______it comes to practicing our musical instruments，I have to67.______
Dractice than double the time．Worst of all，I get a larger quantity68.______
of homework，______(对比)to them．69.______
I’m feeling rather annoyed．Can you please g______me some advice 70.______
Yours truly，
Evan Smith