Mum  (putting on her coat) I’m going to have to go down to the shop for more bread.
Alan  Why?
Mum  I’m not sure what __________ (happen).I made some sandwiches earlier and left them on the table__________ I went to answer the phone. But someone must have taken them because they’re _________ (go).
Alan  Oh, it must have been Dad. I am sure he was in the kitchen _________ (early).
Mum  No, he went off to his tennis match before I finished _________ (make)them, so he couldn’t have done it.________, he couldn’t carry a plate of sandwiches as well all his tennis stuff(物品), ________ I’m sure _________ wasn’t him.
Alan  (opening the fridge door) Well, it wasn’t me. But Mum, look! Are these your sandwiches here on the bottom shelf of _________ fridge?
Mum  Are they there? Oh, my goodness. I must have put them in there when the phone rang. Oh dear. I really must be losing my _______. Now, why did I put on my coat?