为什么选A?these police 不是集体名词应该用复数吗?

为什么选A?these police 不是集体名词应该用复数吗? Police are looking into the disappearance of two children these days.A.are looking intoB.have been looking into问：为什么选A,后面时间“these days不是一段时间吗?表一段时间该用完成时啊 These police often_____the children across the streetA.help b.helps c.helping d.is helping选哪个为什么? 为什么the police station 不加所有格 英语高考单选---Why was the man taken to the police station?---Because his failure __ questions made the police suspicious.A.in answeringB.to answer为什么选B,不选A? The police were___the thief in the forest.A.after B.hunting为什么不选B?hunt sb意思是追踪；追捕字典上还有例句：Police are hunting an escaped criminal. We can't eat ( ) these days.A.chicken B.the chicken 为什么不选B? –I wonder __________.–Zebras.A.what do they call these animals B.how they call these animalsC.what they call these animals D.how do they call these animals 为什么不选B 这个英语问题The police were___the thief in the forest.The police were___the thief in the forest.A.after B.hunting为什么不选B?hunt sb意思是追踪；追捕字典上还有例句：Police are hunting an escaped criminal..... When u r in trouble ,why not phone the police为什么我选policeman 不可以》? _____is a big problem.A.To get rid of these thingsB.How to get rid of these thingsC.Getting rid of these things可是为什么不选A和C? The police have been observing his movements these days为什么observing不是observed has been ill in bed ____ three days .A.in these B.in those C.these D.those为什么不可以选B？ these are my parents.they are ( ) A.factories workes B.factory workes 为什么选A,而不选B Have the students been busy------ a fashion show these days?A.ORGANIZEINGB.TO ORGANIZE为什么不选B呢? The police hid __behind the building.a,himb,himselfc,themd,themselves为什么选a啊 the police tied up the suspect with a rope.给的答案是with,为什么不能用by呢? police和policemenThe man was stopped by the traffic__for speeding.A police B policemen为什么?