1)    I’ve tried ---------- this lightbulb but I can’t reach. a) changing b)   to change 2) -Did you know cows have four stomachs? a) -Jay, I’m trying to work... b) -Jay, I’m trying working. 3)   I regret ----------  in this factory. a) to work b) working 4)   I remember ---------- in the hospital ward looking for my father. a) to walk b) walking 5)   I regret ---------- that we are leaving tomorrow in the morning. a) to say b) saying 6)   Don't forget ---------- The Alhambra. a) visiting b) to visit 7)   Can you two stop ---------- that game and come and help us with a delivery? a) to play b) playing 8) -What do you think? It’s a bit tasteless. a) -Try adding some salt. b) -Try to add some salt. 9)   I can’t go on ---------- like this – I’m exhausted. a) to work b) working 10)   I will never forget ---------- New York. a) visiting b) to visit 11)   Every time I listen to them I can’t stop ---------- . a) dancing b) to dance 12)   He regretted ---------- so rudely to his boss. a) speaking b) to speak 13)   I can’t stop ---------- to you now, I'm so busy, sorry. a) talking b) to talk 14)   Don’t forget ---------- some eggs please! a) buying b) to buy 15)   We regret ---------- the late arrival of the 12.45 flight from Paddington. a) to announce b) announcing 16)   After introducing her proposal, she went on ---------- the benefits for the company. a) to explain b) explaining 17)   I stopped ---------- for them because the wages were so low. a) to work b) working 18) If you have problems sleeping, you could try ---------- some yoga before you go to bed. a)   to do b) doing 19)   People should try ---------- together in harmony. a) to live b) living 20) It’s difficult to focus on what you are doing if you have to stop ----------  the phone every five minutes. a) to answer b) answering

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