----Could you please come to the museum with me this afternoon?--_英语解答

----Could you please come to the museum with me this afternoon?
----Sorry,I____.I have to take a piano lesson at 2:00 pm.
A couldn't B mustn't C can't D needn't 选择带上理由

人气：138 ℃　时间：2019-10-10 00:47:04

解答

选C（can't).
理由：问句是COULD表示委婉,但回答时需要用can表示实际情况,不需要对自己委婉.另外A,也是过去式.不能使用.没有B的用法,D的意思是,不必要.
所以,只能先C.