题目内容

My son ______spend all his pocket money, but now he ______saving some of it.
A.was used to…used toB.used to…is used to
C.used to…used toD.was used to…is used to
B
根据but now可知前文应为过去时态,used to可表示曾经做某事,be used to doing sth 习惯了做某事,故选B。
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