【正文】
道 5 分 ) ____ (can / could) read and write when he was three. you ____ (buy / bought) a car ten years ago? 3.—Could I have a look at your new watch?—Yes, you ____ (can / could). 4.—Could your brother run at the age of two?—Yes, he ____ (can / could). 第 3 頁 共 3 頁 5.—Could I buy some drinks and snacks?—Sorry, you ____ (can’t / couldn’t). you please ____ (tell) me something about her? 。mustn’t 。must 。is used to used to。used to to。can’t 。needn’t