beginning of a speech, it is very important to grab the audience’s attention and make them interested in ______ you have to say.

David _____ a customer when the fire started．

So far, scientists haven’t found any evidence of water that ______ life on Mars.

I remembered________ the door before I left the officebut forgot to turn off the lights.

The old black woman sat under the pine tree, her grandsons, ______ around her, ______ to an old story.[ ]