[محمد حسن 2010]

o / 1 - her carelessness result ina terrible fire that destroyed the house. /

o / 2 - the old man's gradual decline saddened his family. /

o / 3 - the company is looking for a chemical engineer with a specialise in plastics. / specialist

o / 4 - the theory scientist thought the process would work. / experiment

o / 5 - yasser bought huge amount of each spice. /

o / 6 - invisible is something that scientist dream of but haven't achieved. / theory

o / 7 - zoologists will raise the young bears until they can realise them in the wild. /

o / 8 - the experiment showed that cancer cells hadgrown around the liver. /

o / 9 - the result of the oil spill was heavy pollution in the sea. /

o / 10 - we have several theories about how this disease spreads,
but we need to do more studies. /

o / 11 - her achievement havegone beyond our expectation. /

o / 12 - do you come here regularity ? - no, I've only been here once before. / regularly

o / 13 - the scientist decided to test the theory with experience. / experiments

o / 14 - he planted a small tree in a put. / pot

o / 15 - rania has earned a lot of weight recently. / gained

o / 16 - there's a huge number of information on the internet. / amount

o / 17 - what do you hope to gain by going abroad ? / earn

o / 18 - you can't see the germs that spread the disease, they're visible. / invisible

o / 19 - dermatitis is a disease in which there's too much sugar in the blood. / diabetes

o / 20 - theoretical, anyone can travel to the moon ? / theoretically /