on the weekend,I went to the park with my friends.这个句子哪里错?是改错题,有 on went to 三个选择

i,going,hiking,weekend,usually,the,on I often play sports. ( )I go shopping on the weekend. I usually play the piano on the weekend怎么问 I PIANO ON PLAY THE SOMETIMES WEEKEND THE on the weekend or at the weekend 改为一般疑问句:I usually play football on the weekend I was very busy on the weekend什么意思 I OFTEN CLIMB MOUNTAINS ON THE WEEKEND (翻译) I usually go shopping on the weekend上一句是什么 I watch TV on the weekend.(变成否定句) I clean my room on the weekend改为否定句 Yes,I often read books on the weekend.问句是什么 I often pick up leaves on the weekend. I usually shopping on the weekend.的错误 I have time on the weekend.(改为一般疑问句) I watch TV on the weekend.(变成否定句) I often visit grandparents on the weekend?改I often visit grandparents on the weekend?改为一般疑问句 I often do my homewore on the weekend(改为I often do my homewore on the weekend(改为一般疑问句)