英语,（说明为什么选这个，和其他为什么不选，谢谢）
①what do you think made your brother so upset?______his new backpack.A.As he lost B.lost C.Losing D.Because of losing②It was about two years ago _____a young man saved ten children from the ruins.A.that B.until C.before D.when③According to the scientists,in a healthy diet, it✀s better to boil eggs rather than ____then.A.to be fried B.frying C.to fry D.be fried④_____has been announced,we shall have our final exam nest month.A.As B.That C.It D.Which⑤Canada has____population of about 30 million,while _____population of China is about 1.3 billion.A.a,the B.the,a C.a,a D.the,the⑥The Los Angeles basin is surrounded _____three sides _____high mountains.A.with,by B.on,by C.by,with D.on,on⑦The medicine is not allowed to be taken by this patient, _____the side effect is obvious.A.whose B.whom C.who D.on whom⑧A clean enviroment can help the city bid for the Olympics.Which _____will promote its econonic development.A.in nature B.in return C.in fact D.in turn⑨The opening ceremony started at 8 o✀clock at the Bird✀s Nest _____the audience started to enter at 6.A.which B.where C.when D./⑩Hi,Lucy.Would you like to go to the supermarket with me now？ I’m sorry.But I _____by a doctor.A.am examined B.was examined C.have been examined D.am being examined11.Class 4 and class 14 will compete _____the championship of the football match.A.with B.for C.against D.in12.Lucy explained to her doctor _____her headache had begun one year before,and _____,only because of this,she had failed the exam.A.when,how B.how,how C.how,when D.why,why13.Canada and Australia are primarily _____countries.A.English-speaking B.speak-English C.spoken-English D.English-spoken14.You✀d better not advise the manager to do that,or you will risk_____.A.firing B.to fire C.being fired D.to be fired15.In my opinion,it✀s the best use that could be _____the space.A.made up B.made in C.made of D.made from16.Oh,it✀s you! I _____you. I✀ve just had my hair cut, and I✀m wearing new glasses.A.didn✀t recognize B.haven✀t recognized C.don✀t recognize D.am not recognizing17.He loves the old songs,which _____everyone of his age.A.are familiar with B.are similar with C.are familiar to D.are similar to18.It✀s time for lunch._____Tom come? No,he _____this afternoon.A.Has,is arriving B.Did,arrived C.Has,hasn✀t come D.Did,didn✀t come19.Whom are you looking for? The woman _____Doctor Li.A.called herself B.calling herself C.who called D.we called her
