since共4篇 since的用法有哪些 例句汇总since的用法：与since +时间(起点)连用，表示自…以来。与since ... since的用法时态 具体有哪些用法since一般用于“现在完成时”或“一般现在时”。当since引导的从... Unit 1 I haven’t done much exercise since I got myUnit 1 I haven’t done much exercise since I got my于近期开考... Unit 1 I haven’t done much exercise since I got myUnit 1 I haven’t done much exercise since I got my于近期开考...
