Choose the right forn of the verb and write down the sentences 1.we already(were,have,been)to london 2.we(were,have,been) in london 5 years 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. .
2)were
3)didn't
4)haven't