If you are going to exercise outside,to drink plenty of water.在做雅思听力的时候碰到了这样一个句子.为什么逗号后面用“to ”呢?百思不得其解.

if you are going to show you are going to Live as if you are going to die tomorrow Study as if you will never die! If you are the scientist,what are you going to do about the space trash? .If you don't know where are you going,any road will get you to there!.. What are you going to do this afternoon?We are going to have a football math if it What are you going to do this afternoon?We are going to have a football math if it which country are you going to visit if you have a chance如上,中文翻译 if you stay focused on yourself,you are going to be miserable.翻译下! do you know right away if you are going to like someone?谢 Where are you going to When are you going to D.. are going to.you If you go to Beijing,we( )miss you A.will B.are going to C.will be D.are what are you going to do,if you are asked to work overtime 不是翻译，100个字，英文的， if you are expecting the life in the countryside to be interesting,you are going to be very d ____? you are going to miss the bus_____you hurry.A.unless B.even C.if what are you going to do if it rains翻译急求,快快快,谢谢