选词填空。
bring，dumpling，twice，terrible，everything，pay,end，food，feel，healthy |
Do you often eat lunch at school?How do students____about school lunches?
China
Most schools have dining rooms．They have ____for students，for example，noodles，rice，pizza， ____，and vegetables．Most students think that Chinese food is delicious but the Western food tastes ____．
Australia
Meat pies and cookies are all traditional ____in Australian school shops．But the country ____more attention to children's health．At school，students don't often see them．What they see is much ____food．Students can see cookies，chocolate and soft drinks only ____a week．What they often eat is healthier green foods such as sushi，corn and watermelons．
South Africa
Most South African schools do not have meals at all．Classes ____at 1：30 pm and students get their own lunches．Many students ____food from home,usually sandwiches．Fast food sells the best among(在……中间)students．So it causes a rise in obesity(肥胖)among children．
满足 = ，则复数z的共轭复数为（ ）
