these days和those days前要不要加in

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• that day, this day, these days, those days前用介词吗
• that day,this day,these days,those days前用介词吗
• these days 和those days 分别用在什么时态?
• I have wasted too much time in these days.这里要不要加 in
• do you remember those days____we spent along the seashore very happy A.when B.where C.which D.whodo you remember those days____we spent along the seashore very happy .A.when B.where C.which D.who I shall never forget those years______I lived in the country with the farmers,___which has a great effect on my life.A that,which B when,which C which,tat Dwhen ,who答案是C和B我的疑问是,两道题既然都是定语从句都是主谓宾齐全,为什么第一题用的是which 而第二题用的却是when
• whole three days 为什么不加the,whole前一定要加the the whole day 前不能加prep吗
• Though in those days,travelling was not as easy as it is today,steam boats carried thousands...（1）其中travelling was not as easy as it is today,在整句话中做什么成份?（2）as easy as it is又做什么成分?（3）travelling为什么要加ing?
• He wrote the letter last week and posted it three days ago.改成一般现在时态和现在完成时态.要加时间状语!
• in the days that followed这里的that为什么不能省?为什么不能说in the days followed我也是觉得可以省的。 但是书上的是一道改错题 ：in the day followed。答案就是在followed前加that.它说that不能省。
• Can you finish( ) (draw) the picture in two days?要不要加ing大神们帮帮忙
• 对于任意实数,分式1/-x^2+4x+c总有意义,则c应满足什么条件?
• 已知定义在R上的奇函数f（x）是一个减函数，若x1+x2＜0，x2+x3＜0，x3+x1＜0，则f（x1）+f（x2）+f（x3）的值_．