I knocked on the door several times but _____ answered,so I

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I knocked on the door several times but _____ answered,so I left.A) somebody B) nobody C) anybody D) everybody The professor has given us _____ advice on how to improve our memory.A) much B) many C) a lot D) several 也要具体理由.

I knocked on the door several times but _____ answered,so I left.解析：这句话中关健词but,有转则,前面肯定句,后面应该是否定句.答案B) nobody
A) somebody B) nobody C) anybody D) everybody
The professor has given us _____ advice on how to improve our memory.解析：advice是不可数名词,常见词组：give sb some advice ,因此答案：A) much
A) much B) many C) a lot D) several

I knocked on the door several times but _____ answered,so I 1 I knocked on the door several times but ____ answered,so I .I knocked on the door ,but the answered. I knocked on the door,but ________ answered.[ I knocked on the door but nobody _____(填answered还是opened) th i knocked on the door a few times but____answered,so i left. I knocked several times __________ an old man answered the d .I knocked on the door ,but nobody _____ the door.A.closed B 用这些词填空 1.I knocked on the door but ＿＿ answered.2.David is ne I knocked at the door (l ) of times ,but he didn't hear it. - i 've tried several times but the door just __open - why _ I tried to ___you at home several times,but no one answered