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Fill in the correct tense-form of the infinitive or the -ing form.
4.She must ____ (work) outdoors when we rang. She didn’t answer the phone. 5.Jane hoped ____ (give) the prize, but someone else won it. 6.He seemed ____ (swim). He was all wet. 7.I should ____ (give) him some money before we went out, but I forgot. 8.She says she would love ____ (come) to dinner with us tonight. 9.He must ____ (practise) that piece for hours – he plays it very well now. 10.The athlete seemed ____ (be) out of breath – he must ____ (run) for hours. 11.Peter claims ____ (choose) as the best-dressed man of the year. 12.They could ____ (prepare) a meal for us last night instead of making us go out to eat. 13.John must ____ (be) very busy these days – I never see him. 14.The house looks so clean now. She must ____ (clean) all day. 15.Jan should ____ (give) us her new address before she left. 16.The two men appeared ____ (try) to break into the building when the police arrived.