这句话用过去完成对吗?Only six months after plans had been submitted,the playground was complete.还是直接用过去式就行了?

这句话用过去完成对吗?Only six months after plans had been submitted,the playground was complete.还是直接用过去式就行了? I am only stay at home .这句话表达对吗? My life is only have he 这句话对吗 they pay only they can pay,这句话语法对吗? I usually get up at half past six.这句话对吗? we can only solve this problem.这句话only放的位置对吗? 完成分化已成熟的根冠细胞这句话对吗? only语法问题Only the whole nation got liberation,the black women could get rid of gender discrimination.这句话对吗,could用提前吗? Macaroni has been grown in this area for over six hundred years.这句话用现在完成进行时可以吗? My sister have a meal at six o'clock every day in the evening这句话对吗 这句英语对吗：this paper only proposed one case?Due to space limitation,this paper only proposed one case on XXX.请问这句话通顺吗?这个one和on用得对吗? The movie is intended for adults only .这句话是系表结构The movie is intended for adults only .这句话是系表结构吗?但is后面的动词要用过去时呢? 请问这句英文写的对吗?not only...but alsoNot only will this affect our health but also natural disasters will occur.用not only...but also 造句,这句话从语法上来说正确吗? only you practice more will your english speaking ability be improved.这句话语法对吗? Not only does he study hard,but also he is polite 这句话对吗 I only watch playing sports on TV这句话对吗?有语法错误吗?请讲一讲, The park not only beautiful but also quiet. 这句话对吗 The distance between you and me is not only one century这句话语法对吗