Fill in the gaps in the sentences.

{"q": "1. Sorry, I ____. cook tonight – I work late. But I ____ cook tomorrow, I promise.\n2. I ____ phone Anne last night, but I ____ call her this evening.\n3. I’m sorry I ____ come to the meeting yesterday. My son was ill so I ____ stay at home.\n4. I’m really sorry, but I ____ come and see you tomorrow because I ____ study for my exam.\n5. I ____ go to the wedding last weekend because ____ I go to a conference.\n6. Terry ____ come for dinner tonight. He ____ fly to Rome on business yesterday evening, but he ____ phone you when he gets back.", "a": "1. can’t / will\n2. couldn’t / ‘ll\n3. couldn’t / had to\n4. can’t / have to\n5. couldn’t / had to\n6. can’t / had to / will"}