Complete these sentences with a suitable verb in the correct form: -ing or infinitive (with or without “to”). 1. ann likes (solve) difficult tasks. 2. we managed (get) to the airport in time. 3. let line ab (be) equal to line cd. 4. it was an unpopular decision to postpone (build) the new hospital. 5. you can’t expect (learn) a foreign language in a few months.