our country must be able to keep pace technologically

our country must be able to keep pace technologically To protect the environment,more trees _____ in our country every yearA plant B were planted C be planted D must be planted Everyone must o___ the laws of our country We must be sure that children in our country should get well ______A.educate B.educating C.education D.educated为什么不可以选C There（be）great change in our country since 1979 It must be the country air 请问可不可以把the country air改成the country's air呢?为什么? We must work hard make our country more beautiful错在哪里 .If we want to know the development of our country,we must learn__well(history还是politics) We must keep our country ________.A.clean B.to clean C.cleaning D.cleaned Your Message must be between 10 and 160 characters.You must supply a valid country to enter the competition.You must select a country.三句各是什么意思?急! our,neighborhood,visiting,there,be,someone,homes,the,in,must Best love my sweet baby forever,our must be I think (it) must be our monitor.为什么填it? We must try our best to be green _______.(consume) We must try our best to be green _______.(consume) Our homework must be finished first（改为主动语态） our must in her be teacher office连词成句快一些 I trust our instincts.it must be no mistake!