yesterday I helped him__the homeworkA do B does C did Ddoing

Yesterday I helped Tom -------- his radio. 为什么--------要选mend I helped my mum do some h（） i helped my mother with the housework yesterday改为否定句 I helped my mother cleaned the room yesterday.这句型对吗? I helped my mother ___ the cooking yesterday evening.A.does B.did C.doing yesterday I helped him__the homeworkA do B does C did Ddoing Yesterday I helped Mr.Smith with the Christmas lights.如何翻译? I helped my mother clean the room yesterday.还是I helped my mother cleaned the room yesterdayhelped后面的clean应该不用加ed了吧 I ,helped ,my ,dog,carry ,my ,husband's ,slippers ,yesterday ,_ 是这九个词.再加一个词 加以 I met the old woman again.I helped her cross the street the day before yesterday.改写为含定语从句的主从复合句 I helped my classmate today. 用who,whom或which把以下每对句子改写成一句话.This is the old man.I helped him the before yesterday. there ---a small boy --in the corner yesterday,and i helped him find his mother.A.was crying B.is cry C.was cries D.is cries who helped Mum wash the dishes yesterday?Helen().A.washed B.helped C.did D.was 英语she helped her mother yesterday 【变否定句】 My mother helped me doing housework yesterday.______________________改错 My father helped me to r______ a broken radio yesterday. yesterday ,I h什么 from my mother,I was very happy