There __this afternoon,You'd better take an umbrella with yo
There __this afternoon,You'd better take an umbrella with you.--Ok.,thanks.Ais going to rain B is going to be rainy C is going to be rain D is goiing to have rain
there is 就是客观的“有”的意思.be going to 是表示将来. B错,be rainy.there be 句型是没有系表结构的,所以不能用rainy. C错,道理同B,there be 没有系表结构. D错,there be 就是 “有”的意思,have 也是“有”的意思,意思重复. 所以只能选A