1.if you _more about giving first aid,youus had

来源：学生作业帮编辑：百度作业网作业帮分类：英语作业时间：2024/07/02 18:50:35

1.if you _______more about giving first aid,you______us had known,could have helped
2.Never _____such an animal as Jim described after his coming back from the New Zealand.
have i heard 还是 did i hear,还是had i heard
问:1中had known是根据could have helped 往前推一个时态得出来的.
那么在2中,是不是也可以用这种方法,把described往前推一个时态,得出 had i heard..为什么?

是的因为过去完成时态就是过去式之前的事件发生的动作
只要是一个动作发生在过去那个动作之前那个在前面的动作就可以用过去完成时态哈

1.if you _______more about giving first aid,you______us had If you nced first aid的意思? something about first aid He lost his left leg.If I ( )more about going first aid,Icou Please talk about your first love .If you have never had any 英语翻译Ad a child,you should know something about first aid to if i were you,i'd have a first-aid book on a nearby shelf in please give us some a------- about first aid Tell a story about offering basic first aid you should tell your parents first about it if n_______ 急求what do you think of giving financial aid to the poor coun first aid dressing是什么意思