cleaned the window [kliːn][ðiː]['wɪndəʊ]clean英 [kliːn]美 [klin]adj.清洁的,干净的;清白的 vt.使干净 vi.打扫,清扫 ad...
The window is dirty I know it hasn't been cleaned for weeks.不能说wasn't cleaned 。此句it hasn't been cleaned for weeks用的是现在完成时,表示从过去开始...
现在式: I clean the window.现在进行式 l am cleaning the window.现在完成式: I have cleaned the window.现在完成进行式: l have being clean the window.过去...
原句是现在完成时,所以改为被动语态也是现在完成时的被动语态。构成是:have/has been +过去分词 +by sb. 所以应该改为:The window has been cleaned by Tom.
可以。need to do,need doing,need to be done 1.need to 作情态动词,通常用于疑问句、否定句、条件句、whether(if)名词从句或含否定意义的句子中。如:I do not s...
答案:D 解析: 窗户应是被擦,且过去的动作影响到现在,所以用现在完成时的被动语态.
cleaned the window [kliːn] [ðiː] ['wɪndəʊ]clean英 [kliːn] 美 [klin]adj. 清洁的,干净的;清白的 vt. 使干净 vi. 打扫,...
cleaned the window [kliːn][ðiː]['wɪndəʊ]clean英 [kliːn]美 [klin]adj.清洁的,干净的;清白的 vt.使干净 vi.打扫,清扫 ad...
The door needs repairing.= The door needs to be repaired.This room needs cleaning. 这房间应该打扫一下。This book is worth reading. 这本书值得一读。4) 特...
不对,这句话的主语是the windows ,主语用的是复数形式,谓语也应该使用相应的谓语形式,就应该用were cleaned
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