【1.Theproblemishow/ifwecanmastermodernscienceandtechnologyinashorttime.答案是how,为什么不选if2.Thequestionisif/whetherwewillhaveoutsportsmeet.答案是whether,为什么不选if3.Thereasonwhyhehasbeensuchasuccessi】

　　1.Theproblemishow/ifwecanmastermodernscienceandtechnologyinashorttime.

　　答案是how,为什么不选if

　　2.Thequestionisif/whetherwewillhaveoutsportsmeet.

　　答案是whether,为什么不选if

　　3.Thereasonwhyhehasbeensuchasuccessisthat/wherehenevergivesup.

　　答案是where,为啥不选that

　　4Youaresayingthateveryoneshouldbeequal,andthisiswhat/whereIdisagree.

　　答案是where,为啥不选what