they are in___danger there

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• they are in___danger there
• they are in___danger there
• 英语冠词类选择题It is well known that___tiger is in___danger of dying out.A.the;/ B.a;the C.the;the D.a;/Mr.Brown is a policeman.He works in___*.Now he is sitting at table watching__TVA./;/;/ B.the;the;the C.the;the;/ D./;/;theWhat__population of China nowA.is a B.is the C.was a D.are the___life they now lead!A.What exciting B.How excited C.What an exciting D.How an excitedI always eat___good lunchA./ B.a C.the可不可以说下理由
• 难道还会钓到这么大的鱼吗?（改为陈述句）
• 已知的y=ax＾2+bx=c(a≠0)图像如图（图不好）则 1 .abc>0 2.b0 4.b＾2-4ac>o 其中正确