______has he been to beijing?A.How long B.How soon C.How many times D.How often为什么一定要选C 而不可以选A呢?

______has he been to beijing?A.How long B.How soon C.How many times D.How often为什么一定要选C 而不可以选A呢? ______has been done to stop pollution by the government .A many B Much C Few D None John's success has nothing to do with good luck.It is years of hard work ______has made him what he is today.A.why B.when C.which D.that ______has been done to improve the working conditions A,a lot of B,lots of C,many D,much______has been done to improve the working conditionsA,a lot of B,lots of C,manyD,much请帮我分析下为什么 He think he has been to shanghai ,does he. He has been to the Great Wall中为什么been He is said to have been there he has been to beijing.什么时态? He has____ been to Shanghai,has he?为什么用never! 填空：（ No,he hasn't been to work today.He's been to the doctor's. He's never been to New York.I've never been there,either( )he( )I( )been to New York. He has never_______Beijingbeen to/gone to/been/gone He has been to America.对America提问. __ __ __ he been __? He has been to Beijing和He has been in Beijing有什么区别? He has____Beijing for three years.A:gone to B:been to C:been in my father hasn't been to Britain.He has been to the US合成一句话 He wantde to know where else you had been?为什么不能是had been to He has been to shanghai three times.根据 three 提问