Whose backpack is this?— It be Mary’s. She is looking for hers.

They are said to be quarrelling about our new language lab. —— I don’t care. It has __________ to do with me.

Who’s the little baby in the photo, Susan?— It’s me. This photo ten years ago.

I will never forget that terrible accident ________ it happened so long ago.[ ]

Could you tell us ____? —For about two weeks.