He is so shy that he has trouble communicating with others.为什么用communicating

He is so shy that he has trouble communicating with others.为什么用communicating He is _______ speaking in public.He is too shy to do that. for three years ,But he is a shy boy ,so i wrote hum a letter firstly he is so clever that he can answer the question He is so w____ that he can't eat anything. He is so shy that he speaks in the public.　　A.often 　　B.frequently 　　C.seldomD.sometimes 顺便问一下,这个题的空在哪里呀,也不显示, he is so weak that he can't walk any further=he is ( )( )( )( )any further he is so cool he is so sick He is so nice a teacher that he often _____ math so easy.(makes/teaches) Danny is so happy that he looks( )on the train. The boy is so young that he can He is so a_______ that the often forgets things. 1)so busy is he that he can not have a holiday,2)so busy he is that he can not have a holiday哪个对 He is not so sick that he can not go to school.啥意思?还有这个He is not so sick that he can go to school. he is so a naughty boy that he is a regular mischief.咋改错 He is so clever that he is considered to have high i______. so he is和so is he so does he和so he does的区别