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1 a) They are still arguing
b) They have been arguing for two hours
2 a) She is still sleeping
b) She has been sleeping for two hours
3 a) He is still doing his homework
b) He has been doing his homework for three hours
4 a) The boys are still playing football
b) They have been playing footbal for forty minutes
5 a) The girls are stil changing
b) They have been changing for thirty minutes
6 a) She is still studying Spanish
b) She has been studying Spanish for two years
7 a) They are still living at the countryside
b) They have been livin at the countryside for four months
8 a) She is still talking on the phone
b) she has been talking on the phone for twenty minutes
9 a) My brother is still solving this harg task
b) He has been solving this task for thirty minutes
10 a) She is still writeng a letter to grandma
b) She has been writing this letter for an hour
11 a) They are still fishing
b) They have been fishing for five hours
12 a) Granpa and grandma are still playing lotto
b) They have been playing lotto for two hours
13 a) The actors are stil rehearsing that part\
b) they have been rehearsing for 3 hours
14 a) The kids are still running around outside
b) They have been outside for three hours
15 a) He is still writing his new book
b) He has been writing his new book for two years
16 a) He is still learning Hamlet's monologue
b) He has been learnin Hamlet's monologue for two days
17 a) We are still renovating our apartment
b) We have been renovating our apartment for half-a-month