there's a lot of things为什么用there is单数不用there are?

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• many parents lack confidence in their ability to effect change in thier children's behavior 为什...many parents lack confidence in their ability to effect change in thier children's behavior 为什么用effect呢?为什么不用affect呢？
• his mother is(a secretary)划线提问已知答案为what is his mother's job求为什么用what is不用what
• 答得好加悬赏1.There is ____(a/an)"s"in the word "desk"请说明如何区分元音单词 2.we spend an hour finishing _____(the/不填)说明原因3.____(that ,this)is all i wanted to say 说明理由4.I' m afraid get an injection is ____(much too;a lot )原因5.He returned ____(at /on)a rainy night 正确答案是at.但是不是说具体的一天用On 6.解释下括号里为什么用这个时态She always (studied)something whenever she(played)7.-has Tom finished his homework today?-I have no idea .He (was doing )it this morning 括号里为什么不用现在完成时?8.They were (frigh
• there's a lot of things为什么用there is单数不用there are?
• 提一些英语问题It's twenty years he came to work in this school.A.that B.since 答案是B,为什没不选A?Stephen Hawking stressed to the interviews that his accomplishments would certainty have been achieved by others, A.never had he lived B.had he never lived C.he had never lived D.never had he lived为什么选B?这句话又如何翻译?Little i known when i took the trip where it could lead me.为什么用did不用had?He did not teach himself to paint he was in his twenties.这是一道填词题,我写的是before,答案是until ,不
• there's an awful lot you could tell about a person by their shoes.为什么用”you could tell“,而不用”you could be told“?--------不好意思,我没有分了------
• 【高一物理】万有引力的周期单位问题》》》万有引力中的周期,一个星球绕另一个星球转,有周期,如27.4天的,月球的,那么,到实际计算时到底是要化成s还是不化?因为看到有的题目是要化的,有的却不用.如这一题：已知地球绕太阳做匀速圆周运动的周期为365天，地球到太阳的距离为1.5*10^11m，取G=6.67*10^-11N·m^2/kg^2，求太阳的质量。这个周期用天还是秒？但下面这个可是用秒的。如何解释他们为什么用的单位不同？也有用天的：
• 关于F=ma中的质量一个20kg物体在地面受到F=40N拉力,其上面放着个矩形钢块20kg,物体沿平面加速a=0.5m/s2,求物体受到的摩擦力f=F-ma时,质量为什么用20kg计算而不用40kg,高手详细解释下(全都为粗糙面)为什麽为20kg啊,整体不是40kg,那如果用40kg算又是什麽摩擦力,详细原因,对上面囬答不是特别满意 在线等
• 1.our classroom is ()than theirs.A much brighter B more bright.要说为什么2.English is one of John's () subiects.A the worst B worst 请问如果将A改成the worst是不是就对了?3.my best friend often shares things with me and helps people ()trouble.A with B in .请问为什么不能选A?help sb with sth ,4.he is goot at singing and he does better in singing than anyone else in his class.请问he是和in his class.做比较的.为什么用better 而不用 best?5.this meeting is more impoutant than that one.请问one为什么不能去掉.6.t
• 句型It‘s+adj+for sb to do sth...但句子They might find it difficult to plan things for themselves跟那个句型是一回事吗?如果是,句中为什么用it不用it’s?如果不是,给我讲一讲这句子是怎么回事好吗?
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