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...
成人高考学位英语备考练习:非谓语动词 一、不定式 (一)基本结构 to do to be doing to have done to be done to have been done 学位英语真题汇编 1、Judging from his manners at the party, he does
been是be的过去分词;done是do的过去分词。常见的用法是have done和have been done,have done是主动形式的现在完成式,have been done是被动式的现在完成式。 1、done的含义及相关短语用法 形容词adj.已完成的;煮熟的;合乎礼仪的;合乎规矩的感叹词表示接受建议)动词·做...
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