IN THE END OF THE PARTY, MARY FOUND HERSELF WASHING THE DISHES ALO...

40. In the end of the party, Mary found herself washing the dishes alone again, as usual. AB CDIV/. Read the following passage and mark the letter A, B, C, or D to indicate the correct word foreach of the blanks.BIRD FLUThere has been a(n) …(41)… of avian influenza, better known as bird flu in Asia recently.The first …(42)… died two weeks ago in Vietnam and there have been cases reported since inThailand, and there are some suspected cases in Cambodia …(43)….Wild birds are affected by a large number of flu viruses, just as humans and otheranimals …(44)…, but they are normally exclusive to birds. If the viruses manage to mutate, theycan jump the species barrier and infect human beings. The first case …(45)… someone died was inHong Kong in 1997.There are several different forms of bird flu, raging from mild to very …(46)… infections,which spread rapidly and kill many of the birds they infect. It is spread by …(47)… birds-ducks,in particular – which carry the virus, but aren’t killed by it. They can spread the virus to farm birdsthrough …(48)… contact or by contaminating water supplies.World Health Organization officials have attributed the spread of bird flu to human contactwith the droppings of infected birds and …(49)… sanitation. There was no evidence at first thatthe virus spread from person to person, though there has been a …(50)… of this happening beinginvestigated by scientists.