My sister was study in a middle school.请问这句英文有语病么.主要疑问是：是要用“was”,然后“study”要用原形吗?需要加ing吗?

My sister often helps Jack (study) English My sister often (study)Japanese on Sundays. My sister is better at study than I.同义句 My sister will go a___ for further study next year. my sister ______（study）Japanese next week. 17、My sister is doing some in the study . My sister ____(study) very carefully every day. I often study English with my sister (对my sister提问 My sister was（） ill yesterday My sister was study in a middle school.请问这句英文有语病么.主要疑问是：是要用“was”,然后“study”要用原形吗?需要加ing吗? my sister thinks it's not good to study ___ music on.Li Lei's parents left him __ at home.sp he was a little afraid. 【英语题】【改为一般疑问句】my sister is going to study swimming 急!（）（）sister（）to study swimming? I was surprised to learn that my sister was drinking there was no questinon that she was my best sister . I was cooking while my sister was sleeping l h___ my sister will look after my baby when l am on my study. 1.My brother watched tv last（加Study english 改选择疑问句）（ ）（ ）brother（ ）tv( )study english last night2.my sister was good at languages (同）my sister ( )( )( )languages3.She smiled thank you very much she ( )( )()()thank My sister is better at study than I.She is clever(改为同义句)My sister is ___ intellectual ___ me at study.