The 10th year of online shopping inChinaIn 2009, 3G network technology ___61___ (put)into commercial use.China’s mobile Internet users increased by 120 million in this year, ___62___ is highly concerned by the international community. The number of online___63___ (shop) was over 100 million. On No...
... chairs from 9 a.m. to 11 a.m.(1)The worker has been fixing this chair since 9 o’clock.为什么这个可以跟from ....to now ?都是修理动作一直持续到现在。为什么这句不行?(2)章振邦老师说过:“过去进行体也可表示过去某一阶段一直在进行的...
老师,您好! 主将从现中,从句的时态,一般要使用一般现在时,然而,为什么有些从句中会使用现在进行时呢?例如:If it's raining tomorrow, the sports can take place indoors.(为什么不说If it rains tomorrow? 二者有何区别?) I...
...语句:By 2019, they are projected to have fallen off by roughly a third since their peak in 2009.我知道这句话的意思应该是: By 2019, they are projected to fall off by roughly a third since their peak in 2009.为什么这个地方要用to have done呢?一般to have done都是用于类...
...最后一句话中,Now read how she felt after being in the hiding place since July 1942 ,请问这表达的是说是她在住进去之后的感受还是说住这个动作已经结束了后的感受?因为be是个延续性动词,我理解的是应该是整个持续性的动作结束后的感...
1. Ever since then, every time I have entered a patient room with a potential COVID-19 infection I have felt scared — scared that I will infect other patients, my colleagues...
I haven’t heard a letter from him since he left.请问这题为什么错了,答案是:I haven’t got a letter from him since he left.英语考试的一道题,不知道为什么错了,感觉两个句子一样的意思,麻烦老师给我讲解一下原因,感谢
...②Similarly, in his 20 years
running GE, Jack Welch earned a reputation (since disputed) for red-toothed
success, but was too cold-blooded to mesmerise the masses.请问老师,括号里怎么理解,如果since后面是过去式,那前面应该是完成时啊,前面用了earned。感谢老...