_____ recently _____ scientists known something about AIDS.

_____ recently _____ scientists known something about AIDS. Scientists didn’t know much about lung cancer _____. now _____ me say something about myself. tell me something about _____(you) I suppose they have known about it,_____ At first,they got _____ about something and _____ _____ ____ _____ you _____any films recently? You should know something about fire _____(save) -----Let do something at the party--what about _____?-----No You _____ tell me something about your school Can you see something about thia _____ machine? Can you tell something about the accident _____ yesterday?