Объяснение:

1.1 i have been to Britain several times

1.2 she has lived in spain since 1994

1.3 they has been married for 3 years

1.4 i have already made coffee for you

1.5 bob has never had a bike

2.3 has she ever ridden a horse?

2.4 i have never danced...

2.5 the train hasn't arrived yet

4.5 since

4.6 since

4.7 since

4.8 for

4.9 for

4.10 for