为什么好多试题“I often go shopping on weekend”中的weekend都是没有加s?是不是出错了?有often哦?

为什么好多试题“I often go shopping on weekend”中的weekend都是没有加s?是不是出错了?有often哦? 为什么好多试题“I often go to shopping on weekend”中的weekend都是没有加s?是不是出错了?有often哦? i often go shopping on sundays .为什么sanday要加s啊 i often go to school___Mr Smith's car中间的空怎么填?为什么? I often go to the movies 中,movies为什么要加s? I often go to the movies.中的最后一个单词为什么要加S I often go to shopping on weekends在“I often go to shopping on weekends.”中week要不要加s的?为什么?请详细说明. i'll =i will吗do you often go to see movies 为什么要加S详讲/// i go often swimming,i go swimming I often wear them.wear为什么不加s I often go to school on foot,but （） by bus.I often go to school on foot,but （在这填,首字母为s) by bus. I often go to school ( ) my father's car and gto back home () foot I don't often go to school in my father's car.改为 完全否定 there's a l____ shopping mall nearmyhome.i often go there on sundays. there are many stories in my neighborhood.I often go s( ) there. i often go to school___Mr Smith's car这个空应该填什么? I often go to school early ,but s--------Im late for school. I work very hard and I often go to work_______为什么选 on weekends