问题标题：
1.theclothes____(wash)yesterday,they____(wash)easily.2.Nothing____(appear)onthescreen
问题描述：
1.theclothes____(wash)yesterday,they____(wash)easily.2.Nothing____(appear)onthescreen
孙衢回答：
1.Theclotheswerewashed(wash)yesterday,theywashed(wash)easily.
2.Nothingappears(appear)onthescreen.
1.用过去分词表示被动,后者主动结构表示被动的意思.
2.Nothing表示第三人称,肯定要用单数啦.
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