初三英语call on/for一道疑惑的选择题!]The government ( ) the whole nation to work ( ).A.calls on; harderB.calls for; harderC.calls on; more hardlyD.calls for; more hardly我本人选择的是A,但是参考答案上是B.请问这如何解

初三英语call on/for一道疑惑的选择题!]The government ( ) the whole nation to work ( ).A.calls on; harderB.calls for; harderC.calls on; more hardlyD.calls for; more hardly我本人选择的是A,但是参考答案上是B.请问这如何解 关于call的几个短语 call on call out call for call in 或者说有什么不同点和相同点? call on , call for, call in ,call up 分别是什么意思? call on 和 call for的区别我觉得都是号召的意思是不是可以做近义词? 英语call的用法当call作光顾,拜访的意思时,call at,call in,call on有什么区别?（最好详细一点, call for call in call on call at 分别是什么意思?怎么用? 英文词组call on .call for. call after. call out分别什么意思? 一道初三英语填空so read on to find out h you'll know what the right weight is for you call on与call at 的区别 英语方面的疑惑 call for call at call on call off的练习题选词填空Call for call at call on call off1.The tirp to Italy might be ____2.Let us ______ Janmes on the way home4.The government then _____troops to deal with the disturbances二.late later latest late 初三英语一道填空. 英语在线翻译 健康需要大量的锻炼（call for) wait for your call on my birthday call for war ding on condi call in call for 的用法区别 call on,call in,call off的区别 请问call for与call on的区别?两者都有要求的意思,有什么区别吗?