百度作业网1、（ ）he was at home,Iwould have phoned him then
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1、（ ）he was at home,Iwould have phoned him then
A.Had I known B.I had konwn C.Would I known D.I would know
2、we have been doing a lot of gardening( )
A.late B.latest C.latter D.lately
3、竖直上抛一质量为m的小球,经t秒小球重新回到抛出点,若取向上为正方向,那么从抛出到重新回到抛出点的过程中,小球动量变化量为（ ）
A.-mgt B.mgt C.0 D.-mgt/2
A.Had I known B.I had konwn C.Would I known D.I would know
2、we have been doing a lot of gardening( )
A.late B.latest C.latter D.lately
3、竖直上抛一质量为m的小球,经t秒小球重新回到抛出点,若取向上为正方向,那么从抛出到重新回到抛出点的过程中,小球动量变化量为（ ）
A.-mgt B.mgt C.0 D.-mgt/2
1.A 这是一个倒装而且也是个省略句.补充完整是：If I had known.省略If 则倒装为A.这是一个与过去试试相反的虚拟语气.从句用过去完成时had done 的形式,主句用would have done
2.选D表示最近,近来,A是迟到的意思.B是最新的,最近的C是late 的比较级更晚的.更迟的
3.A.
2.选D表示最近,近来,A是迟到的意思.B是最新的,最近的C是late 的比较级更晚的.更迟的
3.A.
1、（ ）he was at home,Iwould have phoned him then
He is not able to be at home because he phoned me from the f
1.They can't have thought that i was at home then,
Henry ( ) be at home because he phoned me from the farm just
His parents kept him staying at home all day long=He was ___
I want him,Then have a home求翻译!
Charles was alone at home,with -----looking at him
1、He often ___(have ) dinner at home.
He often ________(have) dinner at home.
Charles was alone at home,with no one_after him.
请翻译Charlie was there he'd take him home
when I invited him,he a___ to home at once