1. Has he been boating for four hours?
2.Have you been skating since eleven o’clock?
3.Has Lucy been learning this poem for twenty minutes?
4.Have you been writing this article since afternoon?
Объяснение:
1. Has he been boating for four hours?
2.Have you been skating since eleven o’clock?
3.Has Lucy been learning this poem for twenty minutes?
4.Have you been writing this article since afternoon?
Объяснение: