1、Period Three语法感知本课栏目开关语法感知知识储备had not createdwascould disappearwerewouldnt allowPeriod Three语法感知had studiedwould have gonewerentwould not gohad thoughtwould behad listened本课栏目开关语法感知知识储备Period Three语法感知Hadknownhave leftWithoutwould beknewwould have finished本课栏目开关语法感知知识储备Period Three知识储备本课栏目开关语法感知知识储备
2、Period Three知识储备本课栏目开关语法感知知识储备Period Three知识储备本课栏目开关语法感知知识储备Period Three知识储备had comewereIf she came tomorrow，we would hold the party.If she should come tomorrow，we would hold the party.If she were to come tomorrow，we would hold the party.本课栏目开关语法感知知识储备Period Three知识储备本课栏目开关语法感知知识储备Period Three知识储备ha
3、d metwerecould本课栏目开关语法感知知识储备Period Three知识储备本课栏目开关语法感知知识储备Period Three知识储备本课栏目开关语法感知知识储备Period Three知识储备would pass the exam nowhad studied hard beforehad followedwould be本课栏目开关语法感知知识储备Period Three知识储备本课栏目开关语法感知知识储备Period Three知识储备couldnt have succeeded in passingthe examWithout your help，we couldnt have finished thework ahead of time.But for your help，we couldnt have finished thework ahead of time.If it had not been for your help，we couldnt havefinished the work ahead of time.Had it not been for your help，we couldnt havefinished the work ahead of time.本课栏目开关语法感知知识储备
