4. 现在完成进行时(have/has been doing) 表示某一动作开始于过去某一时间,延续或重复地出现至今,或将继续延续至将来。 例:We have been working on this project for over a month now. 到目前为止,我们一直在处理那个项目,已经花了一个多月时间了。 5. 一般过去时 (...
China has taken various measures to ensure the supply of medicines, smooth logistics and the safety of vulnerable groups after the country released "a circular on further o...
10. 现在完成进行时(have/has been doing) 表示某一动作开始于过去某一时间,延续或重复地出现至今,或将继续延续至将来。 例:We have been working on this project for over a month no...
have/has done have/has been doing had done 被动 was/were being done -\-\- have/has been done -\-\- had been done 一、一般现在时 1、表示经常发生的习惯性的、现在反复出现的动作或状态,常用的时间状语有:always,usually,seldom, sometimes, every day, now and th...
11. Recently he has been refusing to do his homework, and instead insists on wasting his time watching DVDs and listening to foreign music. (page 38) 最近,他就是不做作业,而是把时间浪费在看DVD、听外国音乐上。 现在完成进行时 构成:have been doing sth...
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