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".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.我想你是问有关这吧.
1.could 引导的 一般疑问句如果是表示客气语气的句子,用Yes, I can.回答.Could you tell me how to get to Yes,I can./Of course,I can.2.could 引导的 一般疑问句如果是表示过去的能力就用could 回答.Could you swim when you were ten years old? Yes,I could./No,I couldn't.
would引导的一般疑问句肯定回答怎么说1-如果是would you like?肯定:yes,i'd love to.否定:no, thanks./ i'd like to, but2-其他would+主语+动词原形?肯定:yes, 主语(代词)+would.否定:no, 主语(代词)+wouldn't.
1.could 引导的 一般疑问句如果是表示客气语气的句子,用Yes, I can.回答.Could you tell me how to get to Yes,I can./Of course,I can.2.could 引导的 一般疑问句如果是表示过去的能力就用could 回答.Could you swim when you were ten years old? Yes,I could./No,I couldn't.
could?好像是yes u can. No u couldn't 吗??我只记得must need 和 may的用法了
can表能力、客观可能性、许可、请求,还可表惊异、怀疑、不相信的态度(主要用于否疑感).this can't be true. can he come from the usa?how can he be so selfish!could 可代替can,表示语气较为委婉.could you wait a few days for the money?could和can是可以在一般疑问句中互换的,只是语气不一样
肯定回答用 yes, can 否定回答用 no, ..can't.
你好,都用could't是肯定不会错的,因为could可以是礼貌用词也可以是can的过去式.如果想要区分开来用,那就要根据问题提问的内容了.如果问句提问过去的内容,就用could'd;如果问句问的是一般现在式,就用can't
can't再看看别人怎么说的.
C. Could you ( not draw ) pictures on the wall?Could 后 + not + [动词原形]作否定形式