-Someone’s knocking at the door. Is it your mother?-No, dad. It _____be mom. I saw mom ____in the bedroom just now.
There is something wrong with my ________. I can’t hear you clearly at all.
My friend had ________really unusual experience last year.
---Our class won the first prize in the school football match last week. ---________
---My grandfather was ill in hospital last week. ---________.
The high school entrance examination will be over soon. Can you tell me _____the summer holiday?