Поставить в нужную форму слова, очень нужно без ошибок !!! Заранее спасибо!! Варианты ответов: 1. can't., couldn't, mustn't 2. are building, have been building, had built 3. who, whose, which 4. will get, get, will have got 5. not as, more, - 6. such an, such, so 7. mustn't, won't have to, won't be able to 8. has been invented, is invented, has invented