下面的句子应该用什么时态呢...1:When the student arrived at the lecture,the lecturer ____ (to explain) the marking criteria for the academic listening progress test.2:By 2014,it is predicted that the population of Australia____ (to be) 23

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下面的句子应该用什么时态呢...1:When the student arrived at the lecture,the lecturer ____ (to explain) the marking criteria for the academic listening progress test.2:By 2014,it is predicted that the population of Australia____ (to be) 23

下面的句子应该用什么时态呢...1:When the student arrived at the lecture,the lecturer ____ (to explain) the marking criteria for the academic listening progress test.2:By 2014,it is predicted that the population of Australia____ (to be) 23
下面的句子应该用什么时态呢...
1:When the student arrived at the lecture,the lecturer ____ (to explain) the marking criteria for the academic listening progress test.
2:By 2014,it is predicted that the population of Australia____ (to be) 23,000,000.
3:Advances in technology in the past 30 years____ (to bring) some wonderful things for communication.
4.Statistics____ (to be) numbers that represent facts or measurements.
5.The price of gold____ (to rise) at the moment.
6.The student was not permitted to do the exam because they arrived late to class and the exam____ (to start).
7.The value of the Australian dollar____ (to rise) steadily since the beginning of 2010.

下面的句子应该用什么时态呢...1:When the student arrived at the lecture,the lecturer ____ (to explain) the marking criteria for the academic listening progress test.2:By 2014,it is predicted that the population of Australia____ (to be) 23
1.was explaining 时态搭配 一般过去时和过去进行时搭配
2.will be 时态搭配 时间状语是by+将来的时间,所以使用一般将来时
3.have brought .Statistics in the past 30 years是一个现在完成时的时间状语
4.are 这表示的不是一个普通的学科
5.has risen 时态问题
6.started 这是一个与连词相关的问题 and 连接的结构时态一致
7.has risen 时态问题 因为时间状语是since +过去的时间点
Wish I can help you.

at last 的句子应该用什么时态? if开头的句子应该用什么时态 英语翻译应该用什么时态呢? 下面的句子应该用什么时态呢...1:When the student arrived at the lecture,the lecturer ____ (to explain) the marking criteria for the academic listening progress test.2:By 2014,it is predicted that the population of Australia____ (to be) 23 句子中有everyday时,动词应该用什么时态? 句子中出现了so far,应该用什么时态? Nowadays出现在句子中应该用什么时态? but后动词的应该用什么时态He did nothing last Sunday but repair his bike”那关于这个句子呢？ The policeman asked the boy后面的句子应该用什么时态 英语翻译说是过去式,said 主要是后面的宾语从句应该用什么时态呢? when后面的句子 用什么时态 when引导的将来时句子,句子应该用什么时态?还有哪些和when一样的用法 条件句的时态!时态!When做“当...翻译的时候.它引导的句子应该用什么时态啊?比如“当你做出这种事,将不会有好报”怎么翻译其中的时态 各位,应该用什么时态 应该用什么时态,英语. 句子中有“lately”（译为：最近）,这个句子应该用什么时态? the manager()(reflect)on how to improve the quality of products over the past few months.填什么形式这里应该用reflect的什么时态,为什么呢?尤其这里over引导的时间状语的用法,有这种时间状语,句子中的时态应该 I want to be a writer when I.,类似的句子,when后面应该用什么时态?