Present, to show an action which is happening at the time of speaking., future plans or arrangements, something which we think is temporary, something which is new and contrasts with a previous state, something which is changing, growing or developing, something which happens again and again in present, Past, to show an action which was happening in the past, to show an action which was happening when another action, one action interrupts a second action in the past, something which happens again and again in past, Future, an action will be happening at a time in the future, will be in progress at a specific time in the future

countinuous

由
打印
嵌入

视觉风格

活动设置 排行榜 作业

活动设置

排行榜

切换模板

恢复自动保存：？