If they _____(not bring)to the surface soon they may lose their lives.这是我在一本资料里遇到的题目，答案是are not brought，我想不懂为啥，

If people _____(not protect) wild animals, they ___(die). they _____ (not work) now. we can play a trick on them if they do not give us a treat.【同义句转换】We _____play a trick on them if they _____　_____　a treat ______　______. He is only too ready to help others,seldom _____,refusing them when they turn to him.A.if never B.if ever C.if not D.if any They soon realized that,_____ ,the situation would get worse.A.unless dealing with carefullyB.if not carefully dealing with C.unless carefully dealt with D.if dealt not carefully with please tell me why. If they _____(not bring)to the surface soon they may lose their lives.这是我在一本资料里遇到的题目，答案是are not brought，我想不懂为啥， Are these _____ tickets?No,_____ are not _____._____ aren't here.(they) They _____(不) go shopping if it rains this Sunday. If I _____(not have)time tomorrow,I _____(not visit) you. They try _____(not,do) that again,but they fail _____ (do) it. 如果明天不下雨 if it _____ (not rain) tomorrow. If it _____(not rain) tomorrow,I ___(got) there. if it tains tomorrow,sally _____(not climb)the hill If it _____(not rain) tomorrow,I ___(go) there. Don't _____ the office if you are not allowed. they will climb the hills if it -----(not ,rain)tomorrow i am not sure if they're coming什么意思? 7._____ they say it or not,most men expect their wives to be faithful.A.Whether B.When C.If D.Even if请问这题为什么选择A考的是什么知识点,