I______finish the homework in 2 hours.A can B shoud be able

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I______finish the homework in 2 hours.A can B shoud be able to C might D may
你们觉得应该选哪个?
说明理由哦
可是正确答案是B啊我也想不通啊

I______finish the homework in 2 hours.
A can B shoud be able to C might D may
首先,may表示“允许、可以”,语气比较委婉；
might可以用来表示一种比较委婉的可能性判断.根据句义来判断,这两个都不合适.
我个人觉得A和B都应该是正确的.两个都表示了“我将能够在两个小时之内完成功课”的意思.但是上网查了查,有人说
“对未来的能力做决定时,一般用can如:
We're too busy today,but we can repair your can tomorrow.
今天我们太忙,但明天我们能给你修车.”
如果是这样的话,就应该选A.
实际用法中,A和B都可以用的,这一点是可以确定的.
-------回答补充问题------
如果正确答案是B的话,也许是因为should be able to 有一种表示人的意愿的含义在里面.而can就只是描述事件,并没有包含任何个人的感情色彩.而根据具体的环境,用should be able to更适合因为“我”想要在两小时之内把作业完成.
不过,还是上面的那句话,A和B都应该可以用的.这样的题目有点怪怪的,考的知识点太偏了,不用太在意的.

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