It's s_____ that he failed the exam!He is one of best students in the class 应该填什么

It's s_____ that he failed the exam!He is one of best students in the class 应该填什么 He's your mother's son,but he is your brother That's_____ I called him three times last night,but it was s_____ that he didn't answer It's_____(know)that he got the first prize in the competitionIt's_____(know)if he got the first prize in the competition That Chinese book blongs to_____.It's_____. He's heavy with broad s_____ 根据句意和首字母,完成单词,1.It's really a pleasant s_____ to see you here.2.The Three-Gorge P____ is really the greatest of its kind in theworld.3.He said that he would not cheat in the exams a____.4.Don't s_____.your dad is sleeping5.The Who's this ____?Is he your father No.he's my ___.He is my father's_____.That is my father. 1.He is so young that he can't go to school （改为同义句）He is _____ young _____to go to school.2.南希的英语不如汤姆的好.Nancy's English isn't _____ good _____ Tom's3.It's nothing s_____ .She's only very tired.4.我朋友喜欢和 I‘m very s_____ that he failed his English exam. It's s_____ to rain tomorrow. s 处应填什么? it's snowy.Let's go and s_____ 两句话 that's how he does it.和that's what he does It was s_____ me how popular he is. That is their football.It's_____.用适当词填空 1.The house with a garden is so expensive that they can't a ____it.2.It's our duty to p___ our environment and keep it clean and tidy.3.Sam's uncle is an old s_____,he has been in the army for 20 years.4.Chinese Medicine is very popular in many w____ What's it和What's that的区别?What's_____ over there?It's a machine for cutting grass.A.it B.this C.that为什么A不可以? He takes the kite to Tom .They can see a s_____ on the kite.Oh,it is Danny's.写一个s打头的词,