years ago we didn't know this,but recent science ____that pe

来源：学生作业帮编辑：搜搜做题作业网作业帮分类：英语作业时间：2024/06/26 03:48:56

years ago we didn't know this,but recent science ____that people who don't sleep well soon get ill.
a showed.b has showed.c will show.d is showing.
还有一点 soon不是副词吗在句中是不是修饰 get ill?

选B,不应该是过去时,因为后面的从句是现在时,而且years ago只管到逗号那里就行了.
soon 是副词,修饰后面的get ill.前面的who don't sleep well 是定语从句,修饰前面的people.也就是说
recent science has showed that [ people (who don't sleep well ) soon get ill.]
[ ]中的是宾语从句,（）中的是修饰people的定语从句

we didn't know much about each other twenty years ago.we wer Two hundred years ago,people in the West didn't know coffee i didn't know which house （they live in） ten years ago. we know this area,two hundred years ago,was a lake__ but i don't think you can smoke here.I didn't know this is a 英语单项选择 He didn't know that-------ten years to complete this She didn\'t know,but I 反义疑问句可不可以这样：She knew this story,but she didn't know that sto people didn t travel by plane years ago的意思 8.24,It's________thet we didn't know about this before.A ann 英语翻译I wrote this song two hours before we met.I didn't know We Didn't Want You To Know