At that moment ,everybody began to laugh and sing .新概念第二册第九课的一句话.从began可以看出是一般过去时,为什么laugh和sing 不用过去式.

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Atthatmoment,everybodybegantolaughandsing.新概念第二册第九课的一句话.从began可以看出是一般过去时,为什么laugh和sing不用过去式.Atthatmo

At that moment ,everybody began to laugh and sing .新概念第二册第九课的一句话.从began可以看出是一般过去时,为什么laugh和sing 不用过去式.
At that moment ,everybody began to laugh and sing .
新概念第二册第九课的一句话.从began可以看出是一般过去时,为什么laugh和sing 不用过去式.

At that moment ,everybody began to laugh and sing .新概念第二册第九课的一句话.从began可以看出是一般过去时,为什么laugh和sing 不用过去式.
为你解答.
有一个固定用法 begin to do sth "do" 所以就要用动词原形的
求采纳不懂追问

At that time, everyone started laughing and singing.

at that moment等于什么 at that moment 与at the moment 的区别 at the moment和at that moment的区别是什么? at the moment 是否等于at this moment或at that moment at that moment ；at this moment ；at this time ；at that time分别用什么时态? just at that moment同义词组 at that moment 同义词then不对 at that moment是什么时态标准 at that time和at that moment 有什么区别? at that moment和at that time区别帮帮忙 at that time和at that moment 有什么区别? at the moment,at that moment,in a moment,a moment ago的区别与具体翻译、句型 Just at that moment=?填空:Just at that moment=_______ ______两个空. Father quickly dialed 110 at that moment.(改一般疑问句） ____father quickly____110 at that moment. at the moment , at that moment ,at present各用什么时态? at the moment与at that time 的区别? at the same time与at that moment的区别英语：at once和at that moment 有什么区别?