Помогите пожалуйста...Нужно раскрыть скобки, употребив нужную степень
сравнения прилагательного/наречия:

1) His plan is (practical) of all.
2) London is one of (large) city in England.
3) It is one of (important) questions of our conference.
4) Your English is (good) now.
5) Even (long) day has an end.
6) It was (bad) mistake I’ve ever made.

His plan is practicaler of all. London is on of largest city in England. It is one of importanter questions of our conference. Your English goodest now. Even longer dey has an end. It was baddest mistake I've ever made.