请问是make their best to do sth还是make their's best to do sth?

请问是make their best to do sth还是make their's best to do sth? Some young men don't try their best ti make themselves valuable to the human beings. They both didn't do their best. The happiest of people don't necessarily have the best of everything,they just make the most of everything that comes along their way. The athletes tried their best to ____ their aimsA.getB.giveC.achieveD.make 是everyone tries their best还是tries his/her best? 一个英语同义句转换The chilren tried their best to make their parents happy.The chilren tried their best to ( )( ) their parents Make Their make their 是make their ways还是way呢? should parents make their children promises they can't keep? They try their best to make me feel at home 同义句转换 the smiths did their best to make me feel () home they offered me coffee and other () Each person in the company should try his best to make their business more successful是什么意思? the volunteers tried their best to make the children同义句 make their tanslation agency the best one in hangzhou这句话对吗 1They have a p什么view about their future life,they are trying their best to make life better . 请问是for还是of?t doen't make any sense for/of sb to do