It may be five years ( ) it is possible to test this medicine on human patients.A before B after Cwhen D since

It may be five years ( ) it is possible to test this medicine on human patients.A before B after Cwhen D since It (be)five years since I (ride)a bike. it may be 5 or 10 years away.( ） 英语翻译Scientists say it may be five or ten years ______ it is possible to test this medicine on human patients.A.since B.before C.after D.when It will be five years since we meet again.为什么用will be 还有when? 英语翻译If you hurt an elephant ,what may happen when you meet it again five years later It _(be)five years since we last saw each other. It __ (be) five years since I ______ (come)to the country填什么 连词成句five years it meet again will be we before you can improre your spoken english only practicing speaking more englis那两个问号填什么啊?2.-It's getting lat.I'm afraid I must be geing now.-Ok,.3.Scientists say it may be five or six years it is possible to test this medieine on human pat Shanghai Disney has started to be built and it will be open（）five years.A.inB.forC.fromD.before It is five years since he smoked what will you be five years later?what will you be five years later? scientists say it may be five or six years before it is possible to test this medicine on human patients科学家对药品先要进行反复试验后才能用于病人身上 这里的before为什么提前?为什么不直接说it is possible to test t 非诚勿扰Scientists say it may be five or six years ______ it is possible to test this medicine on human patients.a、since b、 after c、 before d、 whenI’d rather you ____ anything about it for the time being.a、do b、didn’t do c、don It --- five years since he left for Beijing. A.was B.had been C.is D.is going to be It ---------five years since he left for beijing1Was 2have been 3is 4 is going to be Great changes have taken place in China .Who can tell what it will be like in another five years