Choose the right form of the verd and write down the sentences. 1. we already (were, have been) to london. 2. we (were, have been) in london 5 eyrs ago. 3. they (didn*t see, haven*t seen) the tsar bell when they were in moscow. 4. they (didn*t see, haven*t seen) the tsar bell yet. ! взарание огромное ! тут надо перевести на верху и выполнить его