clean的动词hall复数that is (they)dog

clean的动词hall复数that is (they)dog 动词过去式后的动词怎么弄?如：I helped him clean the room,为什么clean不用变? 英语中的复数,动词,单三现要这几个单词的复数,动词,单三现：clean read on apartment TVshow sure wait toy shop pool camera bird who 跟单数还是复数动词I dont care who know that 中的动词用何种形式 I (clean)my house and (wash)my ciothes用动词的正确形式填空 clean动词的现在分词形式? I saw that they were watching TV in the hall同义句：I saw _ _ TV in the hall The school hall ( )big and clean that的复数形式 that的复数 this that的复数 that is的复数 that的复数 gentle【副词】 heavy【副词】 clean【反义词】 factory【复数】 wide【反义词】 pollution【动词】 I carried my bafs into the hall.'what you -----(do ' my landlady askde.用正确的动词时态填空为什么这么填 what did you do yesterday. I _ (clean) the room. 请用所给动词的正确形式填空 that的复数 it的复数 clean的复数是什么结尾是加es还是s