we must have passed several years of our lives before learning the words vivacious...vivacious为什么在word后面

we must have passed several years of our lives before learning the words vivacious... we must have passed several years of our lives before learning the words vivacious...vivacious为什么在word后面 We must value what we have 英语翻译我的翻译The days we have passed Five years has passed since we met last .为什么不用have passed? we must have missed you along the What must we have to keep healthy? in stuying we must have patience Five years _____ since we came here.A.have passed B.has passed请问为什么不是A? Several years has passed since we started our middle school life.这里为什么是has passed?several years不是复数形式吗,为什么不是用have passed ten years have passed还是has passed 2 years has passed还是have passed Two years (has) passed since we began studying English 请问为何不用Have three years （ ）passed,we graduation from the school.1.has 2.have one and a half years (have/has) passed since we last meet.应该添哪个,为什么? we have astonished to her that she had passed her driving test翻译请帮忙回答。。。 they must do___duty,as we must do___.we have kept___promise;let them keep___. she must have passed the driving test yesterday ,____she?A wasn't B hasnt C didn't D mustnt