1/为什么是Do you know how many colours there are in the rainbow?

1/为什么是Do you know how many colours there are in the rainbow? how many colours are there in the rainbow? do you know how mang there are colours of rainbow中为什么用there how many colours are there in a rainbow= can you tell me how many colours [there are] in a rainbow 为什 Do you know how many deer ( ) in the zoo?A are there B there How many colours are there in the text?What colours are they 阅读理解填词Do you know how many pandas there are in the world WWF Do you know how many s____ there are in the Bird's Nest（树上鸟巢 Do you know how many tigers there are ( )in the zoo?A.live B DO you want to know how many d___ are there in the novel --Do you know how many planets there are of the sun?--there'