they haven't slow down

they haven't slow down They've They haven’t haven't they 的翻译 some students have nothing for breakfast every morning,( No A have they B haven't they C do they They never have lunch at school at the weekend,( A do theyB don't theyC have theyD haven't they they usually have lunch at school ___ A,haven't they B,do they C,don't they D,have they Most of the boys in your class have visited the Shanghai World Financial Centre____?A .do they B.don't they C.have they D.haven't they Plastic bags have caused serious environmental pollrtion,____.A.haven't theyB.have theyC.don't theyD.do they they haven’t packed their suitcast They haven't got any l they haven't any stationary什么意思 they haven't got to leave改错 Plastic bags have caused serious environmental pollrtion,____ A haven't they B have theyC don't they D do they Do they walk _______ (slow) than you?填什么? 1:---------- they uncles?no,they---------------.A Do...don't B Have...haven't C Has...hasn't2:Look!Here ------ the firemen.A am B is C are they are very sad they haven’t got any honey 2)They must have arrived by now,haven't they?为什么是haven't they?谁帮我讲一下什么时候用didn’t 什么时候用haven’t they haven't decided where they would have a party(改为简单句)they haven't decided ( )( )have a party