we have less to worry about的less可不可以换成fewer,为什么?

we have less to worry about的less可不可以换成fewer,为什么? As we grow up,we realize it becomes less important to have a lots of friend As we grow up,we realize it becomes less important to have a tons of friends, We have to finish the exam right away because we have ( )time leftA little and little B less and less C fewer and fewer Dmore and more We have to go shopping tomorrow.There is so less juice in the fridge.(改错) We surely have less time left to get togeher with others 根据句意和首字母提示完成句子,每空一词1.Luckily ,he has an o—— to get an advanced study in Beijing.2.Most children can not c—— on one thing for a long time.3.The main difficulty to do the work is we have no e——.4.I'm worr 选择because of the large population,we have( )A,fewer places to liveB,less places to liveC,fewer places to live inD,less places to live in We will have( )trees and( )pollution.A.less;more B.more;less C.fewer;fewer D.less;less 1.People can live （）150 yesrs old.A.to last B.to reach C.to be D.to become2.I hope we will have（）people and（）pollution.A.fewer,less B.fewer,fewer C.less,less D.less,fewer3.In two years Susan（）teacher.A.will be B.will have C.were had we have more degrees,but less common sense. We have more knowledge,but less sense; more medicine,but less wellness we have to We have to carry We have not even gone over the first module,_______finished the sixth oneA not to mention B not to speak ofC much less D much more The energy and water is less and less.What should we do to deal with it? we will have plenty of time ,there will be _____time to see him a.enough b.almost enough c.less than enough d.hardly enough We'll have plenty of time.There will be () time to see him..A.enough B.almost enough C.less than enough D.hardly enough