Exercícios Present Perfect Continuous

Complete as frases com os verbos no Present Perfect Continuous.

»	John 1 (study) English for six years.
»	Andrew and Michelle 2 (not see) each other for the past few weeks. They may have broken up.
»	You look tired. What 3 (you, do)?
»	Carla is soaked to the skin. She 4 (walk) in the rain.
»	The room smells terrible. Someone 5 (smoke) here.
»	How long 6 (you, wait) outside?
»	7 (he, work) all day today?
»	Charles 8 (not study) much. That's why he doesn't know the answers to the questions.
»	Marie 9 (not water) the garden these days. Some of the plants are dying already.
»	I see you 10 (not smoke) recently. That's a good sign.
»	How long 11 (she, teach) at Oxford University?
»	The man is gasping for air. He 12 (run).
»	You know this city quite well. How long 13 (you, live) here?
»	Nigel 14 (not help) much. Julia has been doing most of the work.
»	The telephone 15 (ring) all day. Caso queiram fazer mais alguns, clique aqui. No site existem execícios de várias matérias da língua inglesa.