带选项 even though . never until . only before . ever since

带选项 even though . never until . only before . ever since never until,only before,ever since这些词组是什么意思,请翻译一下, 求对only if、even though、only when、ever since的详解. 英语翻译Even though I'll never need her,even though she's only g even though as though even since 三个 用before,ever,never,already,yet,since,for填空 1.even if 2.ever since 3.as if 4.as though since before until 的用法! as if,even though,even since,的意思? as if only if even though even though it was only october Kate works even () than ever before.(hard)