1,When supply is more than demand ______ any product,prices are timely to fall.A,for B,withC,aboutD,to为什么选A2,It's wrong for ______ parent to tell kids to ignore what the other parent tells them to do.A,each B,eitherC,everyD,both为什么选B

1,When supply is more than demand ______ any product,prices are timely to fall.A,for B,withC,aboutD,to为什么选A2,It's wrong for ______ parent to tell kids to ignore what the other parent tells them to do.A,each B,eitherC,everyD,both为什么选B
1,When supply is more than demand ______ any product,prices are timely to fall.
A,for
B,with
C,about
D,to
为什么选A
2,It's wrong for ______ parent to tell kids to ignore what the other parent tells them to do.
A,each
B,either
C,every
D,both
为什么选B不选D
3,Intelligent people need never work hard to be successful in the field where they are engaged in,______ they?
A,needn't
B,don't
C,do
D,need
为什么选D,什么情况下有need的时候选C
4,Earlier fears about the weather disappeared when the rain which had been forecast ______ to appear.
A,would fail
B,fails
C,failed
D,has failed
这句话我没看懂诶= 能帮我翻一下么?还有为什么答案是选C
5,I really regret ______ you the fact that your school team lost the game just this morning as you feel so upset.
A,tell
B,telling
C,to tell
D,told
为什么答案选B,不是一般都是regret to say,regret to tell的么?

1,When supply is more than demand ______ any product,prices are timely to fall.A,for B,withC,aboutD,to为什么选A2,It's wrong for ______ parent to tell kids to ignore what the other parent tells them to do.A,each B,eitherC,everyD,both为什么选B
1.demand 可以加on 或 for ,demand on 表示：应...的要求,demand for表示：...的要求 ,根据句子的意思,用for
2.parent 父母一共两个：爸爸和妈妈,这句话表示的意思是：两个父母中任意一方要求孩子忽视另一个家长的话,这种做法都是错误的.其中一个,当然不能用both啦
4.意思是：当预报说要下的那场雨没有下时,对于这场雨的恐惧（或者说是担心）就消失了.fail to do 表示没有...fail to rain 就是雨没有下.which had been forecast 做定语修饰rain.对于为什么选c,可以用排除法：would rain 显然是不对的,这句话没有任何表示将来有关的信息,would错用.disappeared用的是过去时,所以b的一般现在时也是不对的.d中用的是现在完成时,即使要用完成时.也应该用过去完成时,人们的恐惧消失是发生在雨没有下之后的,也就是说“ 雨没有下 ”发生在 “ 恐惧消失 ”之前,不能用现在完成时
5.regret to do 表示的是：遗憾得...例如：regret to tell you...意思是遗撼地告诉你...regret doing 表示后悔...这句话的意思是：你这么不安,我真的后悔告诉你你们校队今天早上输了比赛 所以选b

父母中的一个告诉孩子不管不顾另一个父母告诉孩子该做的事情是错误的 两者之一是either 两者都是both
need 做情态动词 做实义动词时加do

demand for sth 要求某物 当供应超过需求时 价格就会下降