题目内容
9．
used to，SundaysWeusedtoplaybasketballonSundays．．
分析 我们过去常常周日去打篮球．
解答 答案：We used to play basketball on Sundays．图片上是两个人在打篮球，结合used to表示过去常常，后加动词原形，Sundays周日，故造句我们过去常常周日去打篮球．主语we，打篮球play basketball，on Sundays在周日，故答案是We used to play basketball on Sundays．
点评 used to表示过去常常做某事．
例句：I used to play football after school．过去我常常在放学后踢球．
be used to do的意思是被用来做某事；be used to doing的意思是习惯于做某事．
be used to 被用来做
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