at,for,since的选择填空题这道题目不确定选那个词,麻烦高手帮解答和说明为什么选这个答案．谢谢In the UK,in business situations, when you meet someone_____the first time you shake your hands and say,"how do you do?".A.

选择适当的词语填空.Tony has learnt Chinese( )(since/for)last year. at for since by的区别 at,for,since的选择填空题这道题目不确定选那个词,麻烦高手帮解答和说明为什么选这个答案．谢谢In the UK,in business situations, when you meet someone_____the first time you shake your hands and say,how do you do?.A. 选择合适的介词填空 in on for under at behind 用since for because 填空 用since for because 填空 用since和for填空 用since 和for 填空 英语 有关英语的选择填空.Where were you _________the crime?A.at the moment B.for the time beingC.in a time of D.at the time of I'm sorry____hear the bad news.A.at B.to C.for选择填空理由 选择填空：The girl is ( ) the photo. (in, on, at, for)说出为什么. 选择填空They are working( )a project.A at B on C for 由for since because as 引导的原因从句如何来快速做出选择 for,since ,because的区别 since和for的区别? for和since的用法 since 和for 的区别 for和since的区别 since for的具体用法