could i use your computer?no,you---.i have to---it.A couldn't,work on B can't,work on
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could i use your computer?no,you---.i have to---it.A couldn't,work on B can't,work on
could i use your computer?no,you---.i have to---it.A couldn't,work on B can't,work on
could i use your computer?no,you---.i have to---it.A couldn't,work on B can't,work on
could如果是表示“可能”用于一般过去时态时,回答可用could.
e.g.Could he play the piano two years ago? 肯定回答:Yes, he could.否定回答:No, he couldn't.
如果表示“委婉”,回答用"can".(Could是can的过去式.在问句中could表委婉的语气.在麻烦别人或表邀请的时候希望得到对方肯定的回答.问句中的could可以用can代替.但为了礼貌.通常用前者.答句中考虑到时态.通常用can回答.)
e.g.Could I use your computer? 肯定回答可用:Yes, you can. 但不能用Yes, you could.否定回答可用:Sorry, you can't.不用Sorry,you could't.(这是固定的定律哦!)
所以选B,望采纳,谢谢!
B
Can't 表示拒绝A couldn't为什么不行could 要么表示过去,要么表示委婉语气。
这里都不合适
首先,这不是过去时
再有,这是表示拒绝。couldn't是委婉语气,“也许不可以”,不符合语境,因为后面是I have to...我必须得。。。
can't 表示拒绝。英语中请求句式的否定回答一般都是can't...
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B
Can't 表示拒绝
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