the pen __ out of ink,for it __ write答案是must have run,won't请问为什么这里用must绝对的完成时?won't 用一个将来时态这里又是为什么呢

who is in __(possess) of this building?I'm out of __(breathe) after running up the stairs. I wrote the letter __ Frnch __ my new pen.A:in,with B:to,of 选哪个?选哪个.为什么, 英语：the teacher went out of the room,__（leave) Jim in the room.为什么要填leaving? It was half in and half __ of the car.A.in B.on C.out D.off the pen __ out of ink,for it __ write答案是must have run,won't请问为什么这里用must绝对的完成时?won't 用一个将来时态这里又是为什么呢 The book is in front of the pen.=The pen is_____ the book. There is a bowl of rice in the fridge. a 提问 __ __ __ __ __ __ in the fridge? There is a bowl of rice in the fridge.a 提问 __ __ __ __ __ __ in the fridge He is a top student in our class.He can work out of the problem __[easy] please __（指）out the mistakes of this pictuers The boy in the classroom needs a pen of yours中的a pen ----When can we see the film?My patience __.----It'll soon be shown in our city,I guess.A.has run out B.has run out of C.is running out D.is running out of you,bag,out,the,of,can,get,pen,the?连词组句 Students should speak English both in and out of class.English __ __ __ both in and out of class.改为被动语态 out,get,your,the,of,pen,please,pencil--box.连词组句 the boy is jummping __ the branch 填一个介词在across,over,between ,off ,along ,in ,into ,out of ,under 中选一个 Please___ the book __ the desk.A.bring;out of B、take;out C.take; out of D;carry; out of写出答案并说明原因 1.He came out of a gight black and blue .black and blue 2.He is now in the pen .He regrettedin hat did.in the pen 3.The boys mother odten says her son is the best boy under the sun.under the sun.4.He' a yes-man .I don't like him.yes-man 5.All right .