可以有三种表达:
It is six years since he began to learn English.
It has been six years since he began to learn English
He began to learn English six years ago.
可以有三种表达:
It is six years since he began to learn English.
It has been six years since he began to learn English
He began to learn English six years ago.
最新问答: his novels ___ I have read some are very interesting.A.of th 下列各项中,既是光合作用的原料,又是呼吸作用的产物是 A,有机物和氧气B二氧化碳和水C,有机物和水 X/5十(X一2)/4=4求过程 青藏高原气温升高且降水量减少对长江,黄河,澜沧江等河流源头的补给有什么影响?为什么? 证明一个函数导数存在得先证明这个导数在这个点连续吗 请问有谁知道"人生一世,草木一秋"这句话是什么意思? 已知f(x)是奇函数,且有f(x+1)=-[1f(x),当x∈(0,1/2])时,f(x)=8x, 请问,让我抱抱你,好吗?英文怎么翻译 已知月球上点19.51W,44.12N,以球心为原点建立三维坐标系,xy面为赤道面,xz为子午线所在面,那么该点用角度怎 the other day,I found my banknote__ I had left some weeks be 求函数y=(x-1)e^arctanx 的单调区间及极值 We finally arrived at a(n)_____that the work must be complet 五分之四与它的倒数的和去除六分之七与4.8的积,商是多少? 1、一艘轮船顺水航行的速度为a千米每小时,水流速度为b千米每小时,则船在静水中的速度为( );逆流航行的速度为( ). 结实的意思 ( )has been announced , we shall have our final exam next mo sin多少等于0.6773?类似问题怎么用计算器算? 已知m是根下11的整数部分,n是根下11的小数部分,求m-n的值 王老师去开会4天后立即返回,这4天的日期之和为38,那么王老师是几号返回的?一元一次方程 电气设备保护接地电阻越大,发生故障时漏电设备外壳对地电压