bring,know,doesn't,a ,I,he,him,will,if,persent（连词成句）求速度

过去完成时(past perfect)表示在过去某一时间或动作之前已经发生或完成了的动作或状态.它表示句子中描述的动作发生在“过去的过去”.
一般过去时表示过去某个时间里发生的动作或状态；过去习惯性、经常性的动作、行为；过去主语所具备的能力和性格
看到这些词就是过去式.Ago,yesterday,the day before yesterday,last week,last year,night,month…,具体时间,just now,at the age of ,one day,long ago,once upon a time(很久以前)

What ,意思是他在会议上说的话让在场的每个人都震惊了.
what he said ,这里said缺宾语,所以要用what做引导词.

副词可以在动词前面也可后面,一般副词位于动词之前.该句副词后置起强调作用

过去完成时(past perfect)表示在过去某一时间或动作之前已经发生或完成了的动作或状态。它表示句子中描述的动作发生在“过去的过去”。 一般过去时表示过去某个时间里发生的动作或状态；过去习惯性、经常性的动作、行为；过去主语所具备的能力和性格 看到这些词就是过去式。Ago, yesterday, the day before yesterday, last week,last year, night, month…, 具体时间, just now, at the age of , one day, long ago, once upon a time(很久以前)

46%：46 percent.

percent单复数同形,所以就算是大于1,还是用percent

选C的话句子缺少宾语.
正确A 还原回去是to present what.
C 还原回去是 how to present (it)

1,eighteenth 18岁生日那天他送了我一份礼物
2.favorite 我最大的爱好是读书
3.with 我喜欢茶里加点糖

I started listening to the radio ten minutes ago.I'm still listening to it.
→I have been listening/ have listened to the radio since ten minutes ago.
→I have been listening/ have listened to the radio for ten minutes.
Suzanne started going to school when she was 4.She is going to leave school this year.
→Suzanne has been a student since she was 4.
→Suzanne has been a student for () years.
The phone started ringing 3 minutes ago.
→The phone has been ringing/ has rung since 3 minutes ago.
→The phone has been ringing/ has rung for 3 minutes.
It has stopped ringing right now.we began this test 10 minutes ago.
→ We have been in the test since 10 minutes ago.
→ We have been in the test for 10 minutes.
We are still writing.the sun started shining an hour ago.It's still shining now.1.
→The has been shining / has shone since an hour ago.
→ The has been shining / has shone for an hour.
欢迎提问,

填covers
句子需要谓语动词,所以用 cover（覆盖）的三单式.

你买的蓝牙是不是没有带软件?
需要一个带软件的蓝牙适配就可以了

present perfect tense
亲：有点多,只能缩减了.
现在完成时的结构：have/has +v-ed(过去分词)
概念：属于现在的时态,动作发生在过去,但于现在情况有关系.
以动词work为例：
肯定式
I/We/You/They have worked.
He/She worked.
否定式
I haven't worked.
He hasn't worked.
疑问式
Have you worked?
Has he worked?
带有下列时间状语
already,never,ever,always,not...yet,now,today,this month,since+具体的时间,for+一段时间
例如：I have worked here for a year.我在这里工作了一年.
I have worked here since 2009.自从2009年以来我就在这里工作了.
亲：每天都开心V_V!
thanks!

不能加S
46 percent
= forty-six percent