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 (...
b) 该做或不该做的事情(语气上接近于should, must, ought to, have to),表示一种命令、规劝性语气。 例:You are to go to bed and keep quiet, kids. Our guests are arriving in less ...
b) 该做或不该做的事情(语气上接近于should, must, ought to, have to),表示一种命令、规劝性语气。 例:You are to go to bed and keep quiet, kids. Our guests are arriving in less ...
❺Ecologists (生态学家) are worred about problems the new highway has brought. The rainforest has only a thin layer (层) of rich soil. This layer has been protected by tall trees and fed by dead leaves and plants. But construction is detroying the ...
１深圳卫视记者：美国国务卿布林肯在对华政策演讲中称，美国同中国共产党和中国政府间存在深刻分歧，但这些分歧只存在于美中两国政府和体制之间，而不是人民之间。中方对此有何评论？Sh...
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