问题补充:
单选题Thefloorisdirtyanditrequires_________.A.being cleanedB.cleanC.to cleanD.cleaning
答案:
D解析句意:地板很脏,需要打扫。需要做某事,用require doing或require to be done,所以选D。
时间:2020-06-29 00:56:43
单选题Thefloorisdirtyanditrequires_________.A.being cleanedB.cleanC.to cleanD.cleaning
D解析句意:地板很脏,需要打扫。需要做某事,用require doing或require to be done,所以选D。