I don't understand why you __your mind constantly!We haven't been able to decide where to spendI don't understand why you __ your mind constantly!We haven't been able to decide where to spend our holiday,you know?A.change B.will change C.are changing

I don't understand why you __your mind constantly!We haven't been able to decide where to spendI don't understand why you __ your mind constantly!We haven't been able to decide where to spend our holiday,you know?A.change B.will change C.are changing
I don't understand why you __your mind constantly!We haven't been able to decide where to spend
I don't understand why you __ your mind constantly!We haven't been able to decide where to spend our holiday,you know?A.change B.will change C.are changing D.have changed答案选C,

I don't understand why you __your mind constantly!We haven't been able to decide where to spendI don't understand why you __ your mind constantly!We haven't been able to decide where to spend our holiday,you know?A.change B.will change C.are changing
现在进行的其中一个用法就是：表示长期的或重复性的动作,说话时动作未必正在进行.句中的constantly决定了这个地方选C而不能选A. 说简单点. 你吧这种延续性动作理解为他时常在改变主意一直在进行着的一种状态.
题目一共有两句话,分别是以why和where引导的宾语从句.
四个选项的区别只在时态上,分别是：一般现在时、一般将来时、现在进行时和现在完成时.
那么注定选c了 . 希望可以帮助你.
你是高中学生吧

constantly 表示一直。所以应该用进行时，be doing‘有一种埋怨对方，不好的习惯。
题目的意思是我不明白为什么你的想法这么多变！ 我们还没有决定到哪里去度假，你知道吗？

读多点 英文 书，看多点 英文电影，说多点 英文、就知道为甚麼了
constantly 就有一直的意思、
而 D 的答案 是过去式、这个句子 还是 现在式 所以 D out~
A change 是说 一个 改变，不符合 一直的意思 所以 A out~
B will change 如果把这个放进去，说著 绕口，原因也在於 constantly，给人的 印象是 突然、而...

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读多点 英文 书，看多点 英文电影，说多点 英文、就知道为甚麼了
constantly 就有一直的意思、
而 D 的答案 是过去式、这个句子 还是 现在式 所以 D out~
A change 是说 一个 改变，不符合 一直的意思 所以 A out~
B will change 如果把这个放进去，说著 绕口，原因也在於 constantly，给人的 印象是 突然、而不是 一直 。所以 答案 只有 C 咯

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