Complet the sentences is past perfect continuous 1.they (not/wait) at the station for 90 minutes when the train finally arrived. 2.we (wait for) her ring for two hours and them we found it in the bathroom. 3. i (walk) for a long time, when it suddenly began to rain. 4. how long (study/ she) english before she went to london?

1.they had not been waiting at the station for 90 minutes when the train finally arrived. 2.we had been waiting for her ring for two hours and then we found it in the bathroom. 3. i had been walking for a long time, when it suddenly began to rain. 4. how long had she been studying english before she went to london?

1. had not been waiting. 2. had been waiting for. 3. had been walking. 4. how long had she been  

L) some new documentaries (have) been lately shown on channel 4. 2) dick remembered that those short stories (had) been read on the radio by some popular actors. 3) when we entered the room, the television (was) turned on and my parents were watching the news. 4) thanks to television walt disney’s cartoons (have) been spread all over the world. 5) when i came to troitsk last year, i visited the new library that (had) been built there. 6) the harry potter films (have) been broadcast in all european countries. 7) the teacher told us that those problems (had) never been discussed. 8) very few new species of animals (have) been lately discovered. 9) unfortunately our car (had) not been washed and we had to drive to town in the dirty car. 10) alice said that all invitation cards (had) been written.