IPeople failed to solve the problem 怎莫改被动如上

IPeople failed to solve the problem 怎莫改被动如上 What do you think has made her so upset? ____, I believe.A.She failed her examB.Failing her examC.To have failed her examD.Failed her exam Failed to read input Failed to read inpat failed to initialize title failed to create ID failed to go failed to delive是什么意思? 求教 The committee（委员会） planned to ___the problem ,but failed to do so A3.The committee（委员会） planned to ___the problem ,but failed to do so .A.solving B.to solve C.have solved D.have be solved people get to school or work _____ boat A.by B.ipeople get to school or work _____ boat A.by B.in C.on 写出理由. Police have so far failed --a connection--the two murdersA.to establish;withB.to establish;betweenC.establishing;withD.establishing;between FAILED TO AUTHENTICATE ourselves to failed to connect to server failed to connect to host Failed to connect to driver Tom missed the bus,so he (failed to) get to school on time.同义句转换 Tom missed the bus,so he ----- ------- -------get to school on time . Faced with so much trouble,we failed to complete the task on time.为什么要用faced He failed to do sth,后面用so did Tim./Neither did him.why?我选后者的